id stringlengths 9 16 | submitter stringlengths 1 64 ⌀ | authors stringlengths 3 7.28k | title stringlengths 3 382 | comments stringlengths 1 915 ⌀ | journal-ref stringlengths 4 386 ⌀ | doi stringlengths 9 129 ⌀ | report-no stringlengths 1 341 ⌀ | categories stringclasses 5
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|---|---|---|---|---|---|---|---|---|---|---|---|
0704.0001 | Pavel Nadolsky | C. Bal\'azs, E. L. Berger, P. M. Nadolsky, C.-P. Yuan | Calculation of prompt diphoton production cross sections at Tevatron and
LHC energies | 37 pages, 15 figures; published version | Phys.Rev.D76:013009,2007 | 10.1103/PhysRevD.76.013009 | ANL-HEP-PR-07-12 | hep-ph | null | A fully differential calculation in perturbative quantum chromodynamics is
presented for the production of massive photon pairs at hadron colliders. All
next-to-leading order perturbative contributions from quark-antiquark,
gluon-(anti)quark, and gluon-gluon subprocesses are included, as well as
all-orders resummatio... | 2008-11-26 |
0704.0009 | Paul Harvey | Paul Harvey, Bruno Merin, Tracy L. Huard, Luisa M. Rebull, Nicholas
Chapman, Neal J. Evans II, Philip C. Myers | The Spitzer c2d Survey of Large, Nearby, Insterstellar Clouds. IX. The
Serpens YSO Population As Observed With IRAC and MIPS | null | Astrophys.J.663:1149-1173,2007 | 10.1086/518646 | null | astro-ph | null | We discuss the results from the combined IRAC and MIPS c2d Spitzer Legacy
observations of the Serpens star-forming region. In particular we present a set
of criteria for isolating bona fide young stellar objects, YSO's, from the
extensive background contamination by extra-galactic objects. We then discuss
the propert... | 2010-03-18 |
0704.0015 | Christian Stahn | Christian Stahn | Fermionic superstring loop amplitudes in the pure spinor formalism | 22 pages; signs and coefficients adjusted for anticommuting
superfields, section 4.3 changed accordingly, reference added | JHEP 0705:034,2007 | 10.1088/1126-6708/2007/05/034 | null | hep-th | null | The pure spinor formulation of the ten-dimensional superstring leads to
manifestly supersymmetric loop amplitudes, expressed as integrals in pure
spinor superspace. This paper explores different methods to evaluate these
integrals and then uses them to calculate the kinematic factors of the one-loop
and two-loop mass... | 2009-11-13 |
0704.0016 | Li Tong | Chao-Hsi Chang, Tong Li, Xue-Qian Li and Yu-Ming Wang | Lifetime of doubly charmed baryons | 17 pages, 3 figures and 1 table | Commun.Theor.Phys.49:993-1000,2008 | 10.1088/0253-6102/49/4/38 | null | hep-ph | null | In this work, we evaluate the lifetimes of the doubly charmed baryons
$\Xi_{cc}^{+}$, $\Xi_{cc}^{++}$ and $\Omega_{cc}^{+}$. We carefully calculate
the non-spectator contributions at the quark level where the Cabibbo-suppressed
diagrams are also included. The hadronic matrix elements are evaluated in the
simple non-r... | 2008-12-18 |
0704.0017 | Nceba Mhlahlo | Nceba Mhlahlo, David H. Buckley, Vikram S. Dhillon, Steven B. Potter,
Brian Warner and Patric A. Woudt | Spectroscopic Observations of the Intermediate Polar EX Hydrae in
Quiescence | 10 pages, 11 figures (figures 3, 4, 7 and 8 at reduced resolution,
originals available on request). Accepted for publication in Monthly Notices
of the Royal Astronomical Society | Mon.Not.Roy.Astron.Soc.378:211-220,2007 | 10.1111/j.1365-2966.2007.11762.x | null | astro-ph | null | Results from spectroscopic observations of the Intermediate Polar (IP) EX Hya
in quiescence during 1991 and 2001 are presented. Spin-modulated radial
velocities consistent with an outer disc origin were detected for the first
time in an IP. The spin pulsation was modulated with velocities near ~500-600
km/s. These ve... | 2009-06-23 |
0704.0018 | Andreas Gustavsson | Andreas Gustavsson | In quest of a generalized Callias index theorem | 20 pages, v2: an overall sign and typos corrected | null | null | null | hep-th | null | We give a prescription for how to compute the Callias index, using as
regulator an exponential function. We find agreement with old results in all
odd dimensions. We show that the problem of computing the dimension of the
moduli space of self-dual strings can be formulated as an index problem in
even-dimensional (loo... | 2007-05-23 |
0704.0023 | Maria Loukitcheva | M. A. Loukitcheva, S. K. Solanki and S. White | ALMA as the ideal probe of the solar chromosphere | 4 pages, 2 figures, to appear in the proceedings of the conference
Science with ALMA: a new era for Astrophysics, Spain, 2006 | Astrophys.Space Sci.313:197-200,2008 | 10.1007/s10509-007-9626-1 | null | astro-ph | null | The very nature of the solar chromosphere, its structuring and dynamics,
remains far from being properly understood, in spite of intensive research.
Here we point out the potential of chromospheric observations at millimeter
wavelengths to resolve this long-standing problem. Computations carried out
with a sophistica... | 2009-06-23 |
0704.0029 | Weizhen Deng | Zhan Shu, Xiao-Lin Chen and Wei-Zhen Deng | Understanding the Flavor Symmetry Breaking and Nucleon Flavor-Spin
Structure within Chiral Quark Model | null | Phys.Rev.D75:094018,2007 | 10.1103/PhysRevD.75.094018 | null | hep-ph | null | In $\XQM$, a quark can emit Goldstone bosons. The flavor symmetry breaking in
the Goldstone boson emission process is used to intepret the nucleon
flavor-spin structure. In this paper, we study the inner structure of
constituent quarks implied in $\XQM$ caused by the Goldstone boson emission
process in nucleon. From ... | 2010-04-23 |
0704.0031 | Valery M. Biryukov | V. M. Biryukov (Serpukhov, IHEP) | Crystal channeling of LHC forward protons with preserved distribution in
phase space | 11 pages, 3 figures | Phys.Lett.B658:7-12,2007 | 10.1016/j.physletb.2007.10.051 | null | hep-ph | null | We show that crystal can trap a broad (x, x', y, y', E) distribution of
particles and channel it preserved with a high precision. This sampled-and-hold
distribution can be steered by a bent crystal for analysis downstream. In
simulations for the 7 TeV Large Hadron Collider, a crystal adapted to the
accelerator lattic... | 2008-11-26 |
0704.0032 | Andreu Esteban-Pretel | A. Esteban-Pretel, R. Tom\`as and J. W. F. Valle | Probing non-standard neutrino interactions with supernova neutrinos | 21 pages, 12 figures, 17 postscript files | Phys.Rev.D76:053001,2007 | 10.1103/PhysRevD.76.053001 | null | hep-ph | null | We analyze the possibility of probing non-standard neutrino interactions
(NSI, for short) through the detection of neutrinos produced in a future
galactic supernova (SN).We consider the effect of NSI on the neutrino
propagation through the SN envelope within a three-neutrino framework, paying
special attention to the... | 2008-11-26 |
0704.0052 | William Gordon Ritter | Arthur Jaffe (1) and Gordon Ritter (1) ((1) Harvard University) | Quantum Field Theory on Curved Backgrounds. II. Spacetime Symmetries | 18 pages, 1 figure | null | null | null | hep-th | null | We study space-time symmetries in scalar quantum field theory (including
interacting theories) on static space-times. We first consider Euclidean
quantum field theory on a static Riemannian manifold, and show that the
isometry group is generated by one-parameter subgroups which have either
self-adjoint or unitary qua... | 2007-05-23 |
0704.0059 | Thomas Beatty | T. G. Beatty, J. M. Fernandez, D. W. Latham, G. A. Bakos, G. Kovacs,
R. W. Noyes, R. P. Stefanik, G. Torres, M. E. Everett, C. W. Hergenrother | The Mass and Radius of the Unseen M-Dwarf Companion in the Single-Lined
Eclipsing Binary HAT-TR-205-013 | 18 pages, 9 tables and 6 figures; accepted by ApJ. Added a reference
and corrected a typo | Astrophys.J.663:573-582,2007 | 10.1086/518413 | null | astro-ph | null | We derive masses and radii for both components in the single-lined eclipsing
binary HAT-TR-205-013, which consists of a F7V primary and a late M-dwarf
secondary. The system's period is short, $P=2.230736 \pm 0.000010$ days, with
an orbit indistinguishable from circular, $e=0.012 \pm 0.021$. We demonstrate
generally t... | 2009-06-23 |
0704.0063 | Somnath Choudhury | Somnath Choudhury | Experimental efforts in search of 76Ge Neutrinoless Double Beta Decay | null | null | null | null | hep-ph | null | Neutrinoless double beta decay is one of the most sensitive approaches in
non-accelerator particle physics to take us into a regime of physics beyond the
standard model. This article is a brief review of the experiments in search of
neutrinoless double beta decay from 76Ge. Following a brief introduction of the
proce... | 2008-03-12 |
0704.0064 | Rudra Prakash Malik | R. P. Malik (Bhu) | Nilpotent symmetry invariance in the superfield formulation: the
(non-)Abelian 1-form gauge theories | LaTeX file, 19 pages, journal reference | Int.J.Mod.Phys.A23:3685-3705,2008 | 10.1142/S0217751X08041591 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We capture the off-shell as well as the on-shell nilpotent
Becchi-Rouet-Stora-Tyutin (BRST) and anti-BRST symmetry invariance of the
Lagrangian densities of the four (3 + 1)-dimensional (4D) (non-)Abelian 1-form
gauge theories within the framework of the superfield formalism. In particular,
we provide the geometrical... | 2008-11-26 |
0704.0066 | Bozhidar Zakhariev Iliev | Bozhidar Z. Iliev (Institute for Nuclear Research and Nuclear Energy,
Bulgarian Academy of Sciences, Sofia, Bulgaria) | Lagrangian quantum field theory in momentum picture. IV. Commutation
relations for free fields | 60 LaTeX pages. The packages AMS-LaTeX and amsfonts are required.
This paper is a continuation of the e-print E-prints No. hep-th/0402006, No.
hep-th/0405008 and No. hep-th/0505007. For related papers, visit the
"publication" pages at http://theo.inrne.bas.bg/~bozho/ | null | null | null | hep-th | null | Possible (algebraic) commutation relations in the Lagrangian quantum theory
of free (scalar, spinor and vector) fields are considered from mathematical
view-point. As sources of these relations are employed the Heisenberg
equations/relations for the dynamical variables and a specific condition for
uniqueness of the o... | 2007-05-23 |
0704.0080 | Dean McLaughlin | Dean E. McLaughlin and S. Michael Fall | Shaping the Globular Cluster Mass Function by Stellar-Dynamical
Evaporation | Final version, matching the published paper | Astrophys.J.679:1272-1287,2008 | 10.1086/533485 | null | astro-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that the globular cluster mass function (GCMF) in the Milky Way
depends on cluster half-mass density (rho_h) in the sense that the turnover
mass M_TO increases with rho_h while the width of the GCMF decreases. We argue
that this is the expected signature of the slow erosion of a mass function that
initially r... | 2010-11-11 |
0704.0083 | Andrei Barvinsky | A.O.Barvinsky | Why there is something rather than nothing (out of everything)? | 4 pages, RevTex, several references added and minor changes done | Phys.Rev.Lett.99:071301,2007 | 10.1103/PhysRevLett.99.071301 | null | hep-th | null | The path integral over Euclidean geometries for the recently suggested
density matrix of the Universe is shown to describe a microcanonical ensemble
in quantum cosmology. This ensemble corresponds to a uniform (weight one)
distribution in phase space of true physical variables, but in terms of the
observable spacetim... | 2008-11-26 |
0704.0085 | Partha Mukhopadhyay | Partha Mukhopadhyay | A Universality in PP-Waves | LaTeX file, 43 pages, one reference added, minor changes made | JHEP 0706:061,2007 | 10.1088/1126-6708/2007/06/061 | DAMTP-2007-30 | hep-th | null | We discuss a universality property of any covariant field theory in
space-time expanded around pp-wave backgrounds. According to this property the
space-time lagrangian density evaluated on a restricted set of field
configurations, called universal sector, turns out to be same around all the
pp-waves, even off-shell,... | 2009-11-13 |
0704.0094 | HongSheng Zhao | HongSheng Zhao (SUPA, St Andrews) | Timing and Lensing of the Colliding Bullet Clusters: barely enough time
and gravity to accelerate the bullet | 5-pages, Physical Review D, rapid publication submitted | null | null | null | astro-ph | null | We present semi-analytical constraint on the amount of dark matter in the
merging bullet galaxy cluster using the classical Local Group timing arguments.
We consider particle orbits in potential models which fit the lensing data.
{\it Marginally consistent} CDM models in Newtonian gravity are found with a
total mass ... | 2007-05-23 |
0704.0101 | Paolo Di Vecchia pdv | Paolo Di Vecchia | The birth of string theory | Latex 60 pages, 2 figures, uses svmult.cls. Contribution to the
volume "String theory and fundamental interactions", dedicated to Gabriele
Veneziano on his 65th birthday. | Lect.NotesPhys.737:59-118,2008 | null | NORDITA-2007-13 | hep-th | null | In this contribution we go through the developments that in the years 1968 to
1974 led from the Veneziano model to the bosonic string.
| 2008-11-26 |
0704.0117 | Mang Feng | T. Liu, K.L. Wang, and M. Feng | Lower ground state due to counter-rotating wave interaction in trapped
ion system | Complete solution of a trapped ion in both strong and weak excitation
regimes and beyond Lamb-Dicke limit. Also applicable to JC model relevant
problems | null | 10.1088/0953-4075/40/11/002 | null | quant-ph | null | We consider a single ion confined in a trap under radiation of two traveling
waves of lasers. In the strong-excitation regime and without the restriction of
Lamb-Dicke limit, the Hamiltonian of the system is similar to a driving
Jaynes-Cummings model without rotating wave approximation (RWA). The approach
we develope... | 2009-11-13 |
0704.0121 | Changhyun Ahn | Changhyun Ahn | Meta-Stable Brane Configuration of Product Gauge Groups | 27 pp; 7 figures; Pages 8, 17 and 18 improved and figure 7 corrected;
the abstract and introduction improved and to appear in CQG | Class.Quant.Grav.25:075001,2008 | 10.1088/0264-9381/25/7/075001 | null | hep-th | null | Starting from the N=1 SU(N_c) x SU(N_c') gauge theory with fundamental and
bifundamental flavors, we apply the Seiberg dual to the first gauge group and
obtain the N=1 dual gauge theory with dual matters including the gauge
singlets. By analyzing the F-term equations of the superpotential, we describe
the intersectin... | 2008-11-26 |
0704.0128 | Kim Page | P.A. Evans (1), A.P. Beardmore (1), K.L. Page (1), L.G. Tyler (1),
J.P. Osborne (1), M.R. Goad (1), P.T. O'Brien (1), L. Vetere (2), J. Racusin
(2), D. Morris (2), D.N. Burrows (2), M. Capalbi (3), M. Perri (3), N.
Gehrels (4) and P. Romano (5,6) ((1) University of Leicester, (2)
Pennsylvania State University, ... | An online repository of Swift/XRT light curves of GRBs | 8 pages, 6 figures, Accepted for publication in A&A | null | 10.1051/0004-6361:20077530 | null | astro-ph | null | Context. Swift data are revolutionising our understanding of Gamma Ray
Bursts. Since bursts fade rapidly, it is desirable to create and disseminate
accurate light curves rapidly.
Aims. To provide the community with an online repository of X-ray light
curves obtained with Swift. The light curves should be of the qua... | 2009-11-13 |
0704.0133 | Dieter Lutz | D. Lutz, E. Sturm, L.J. Tacconi, E. Valiante, M. Schweitzer, H.
Netzer, R. Maiolino, P. Andreani, O. Shemmer, S. Veilleux | PAH emission and star formation in the host of the z~2.56 Cloverleaf QSO | Accepted for publication as an ApJ Letter. 14 pages, 3 figures. | null | 10.1086/518537 | null | astro-ph | null | We report the first detection of the 6.2micron and 7.7micron infrared `PAH'
emission features in the spectrum of a high redshift QSO, from the Spitzer-IRS
spectrum of the Cloverleaf lensed QSO (H1413+117, z~2.56). The ratio of PAH
features and rest frame far-infrared emission is the same as in lower
luminosity star f... | 2009-11-13 |
0704.0135 | Nicolas Menicucci | Nicolas C. Menicucci and G. J. Milburn | A Single Trapped Ion as a Time-Dependent Harmonic Oscillator | 5 pages (two-column format), no figures, added introductory material,
other minor content revisions | Phys. Rev. A 76, 052105 (2007) | 10.1103/PhysRevA.76.052105 | null | quant-ph | null | We show how a single trapped ion may be used to test a variety of important
physical models realized as time-dependent harmonic oscillators. The ion itself
functions as its own motional detector through laser-induced electronic
transitions. Alsing et al. [Phys. Rev. Lett. 94, 220401 (2005)] proposed that
an exponenti... | 2007-12-23 |
0704.0137 | Suresh Tiwari dr | S C Tiwari | Topological defects, geometric phases, and the angular momentum of light | No figures | Optik-International Journal for Light and Electron Optics, 120,
414-417 (2009) | null | null | quant-ph | null | Recent reports on the intriguing features of vector vortex bearing beams are
analyzed using geometric phases in optics. It is argued that the spin
redirection phase induced circular birefringence is the origin of topological
phase singularities arising in the inhomogeneous polarization patterns. A
unified picture of ... | 2009-05-15 |
0704.0139 | Barbara Lanzoni | B. Lanzoni (1,2), E. Dalessandro (1,2), F.R. Ferraro (1), C. Mancini
(3), G. Beccari (2,4,5), R.T. Rood (6), M. Mapelli (7), S. Sigurdsson (8) (1
Dip. Astro., Bologna; 2 INAF--Oss. Astro., Bologna, 3 Dip. Astro. e Scienza
dello Spazio, Firenze; 4 Dip. di Scienze della Comunicazione, Teramo; 5
INAF--Oss. Astro. ... | The Blue Straggler Population of the Globular Cluster M5 | ApJ accepted | Astrophys.J.663:267-276,2007 | 10.1086/518592 | null | astro-ph | null | By combining high-resolution HST and wide-field ground based observations, in
ultraviolet and optical bands, we study the Blue Stragglers Star (BSS)
population of the galactic globular cluster M5 (NGC 5904) from its very central
regions up to its periphery. The BSS distribution is highly peaked in the
cluster center,... | 2009-06-23 |
0704.0140 | Mariano Cadoni | Mariano Cadoni | Entanglement entropy of two-dimensional Anti-de Sitter black holes | 6 pages, 2 figures, typos corrected | Phys.Lett.B653:434-438,2007 | 10.1016/j.physletb.2007.08.026 | null | hep-th | null | Using the AdS/CFT correspondence we derive a formula for the entanglement
entropy of the anti-de Sitter black hole in two spacetime dimensions. The
leading term in the large black hole mass expansion of our formula reproduces
exactly the Bekenstein-Hawking entropy S_{BH}, whereas the subleading term
behaves as ln S_{... | 2008-11-26 |
0704.0141 | Serguei Molodtsov | S.V. Molodtsov, G.M. Zinovjev | Towards self-consistent definition of instanton liquid parameters | 11 pages, 4 figures | JHEP 0812:112,2008 | 10.1088/1126-6708/2008/12/112 | null | hep-ph | null | The possibility of self-consistent determination of instanton liquid
parameters is discussed together with the definition of optimal pseudo-particle
configurations and comparing the various pseudo-particle ensembles. The
weakening of repulsive interactions between pseudo-particles is argued and
estimated.
| 2009-01-09 |
0704.0143 | Serguei Molodtsov | S.V. Molodtsov, G.M. Zinovjev | Instanton Liquid at Finite Temperature and Chemical Potential of Quarks | 9 pages, 2 figures | Phys.Part.Nucl.Lett.4:11-17,2007;
PismaFiz.Elem.Chast.Atom.Yadra2007N1:25-35,2007 | 10.1134/S1547477107010037 | null | hep-ph | null | Instanton liquid in heated and strongly interacting matter is studied using
the variational principle. The dependence of the instanton liquid density
(gluon condensate) on the temperature and the quark chemical potential is
determined under the assumption that, at finite temperatures, the dominant
contribution is giv... | 2008-11-26 |
0704.0155 | Floris van der Tak | Floris van der Tak (SRON Groningen), John Black (Onsala), Fredrik
Schoeier (Stockholm), David Jansen and Ewine van Dishoeck (Leiden) | A computer program for fast non-LTE analysis of interstellar line
spectra | Accepted by A&A; 18 A4 pages, 11 figures | null | 10.1051/0004-6361:20066820 | null | astro-ph | null | The large quantity and high quality of modern radio and infrared line
observations require efficient modeling techniques to infer physical and
chemical parameters such as temperature, density, and molecular abundances. We
present a computer program to calculate the intensities of atomic and molecular
lines produced i... | 2015-05-13 |
0704.0156 | Han He | Han He, Huaning Wang | Nonlinear force-free coronal magnetic field extrapolation scheme based
on the direct boundary integral formulation | This paper has been withdrawn by the authors. This paper has been
accepted for publication in JGR-Space Physics. The latest and complete
version of the papaer can be downloaded from
http://rwcc.bao.ac.cn:8001/swap/NLFFF_DBIE_code/HeHan_NLFFF_JGR.pdf (3.76 MB
pdf file) | null | 10.1029/2007JA012441 | null | astro-ph | null | This paper has been withdrawn by the authors.
| 2015-05-13 |
0704.0160 | Grazyna Stasinska | G. Stasinska, G. Tenorio-Tagle, M. Rodriguez, W. J. Henney | Oxygen-rich droplets and the enrichment of the ISM | 4 pages, 5 colour figures, to be published in the proceedings of the
conference "The Metal-Rich Universe", Cambridge University Press | null | null | null | astro-ph | null | We argue that the discrepancies observed in HII regions between abundances
derived from optical recombination lines (ORLs) and collisionally excited lines
(CELs) might well be the signature of a scenario of the enrichment of the
interstellar medium (ISM) proposed by Tenorio-Tagle (1996). In this scenario,
the fresh o... | 2007-05-23 |
0704.0166 | I\~naki Garc\'ia-Etxebarria | Inaki Garcia-Etxebarria, Fouad Saad, Angel M. Uranga | Supersymmetry breaking metastable vacua in runaway quiver gauge theories | 26 pages + appendices, 25 figures. v2: Added some acknowledgments | JHEP 0705:047,2007 | 10.1088/1126-6708/2007/05/047 | IFT-UAM/CSIC-07-14, CERN-PH-TH/2007-063 | hep-th | null | In this paper we consider quiver gauge theories with fractional branes whose
infrared dynamics removes the classical supersymmetric vacua (DSB branes). We
show that addition of flavors to these theories (via additional non-compact
branes) leads to local meta-stable supersymmetry breaking minima, closely
related to th... | 2009-11-13 |
0704.0167 | Jan O. Eeg | Jan O. Eeg | Low Energy Aspects of Heavy Meson Decays | 10 pages, 10 figures. Presented at the final Euridice meeting in
Kazimierz, Poland 24-27th of august 2006 | ActaPhys.Polon.B38:2869-2878,2007 | null | null | hep-ph | null | I discuss low energy aspects of heavy meson decays, where there is at least
one heavy meson in the final state. Examples are $B -\bar{B}$ mixing, $B \to D
\bar{D}$, $B \to D \eta'$, and $B \to D \gamma$. %and $B \to D W $ (Isgur-Wise
function). The analysis is performed in the heavy quark limit within
heavy-light chi... | 2008-11-26 |
0704.0168 | Paul Dempsey | Paul Dempsey and Peter Duffy | Radiative losses and cut-offs of energetic particles at relativistic
shocks | 10 pages, 23 figures and 2 tables. Accepted for publication by MNRAS. | Mon.Not.Roy.Astron.Soc.378:625-634,2007 | 10.1111/j.1365-2966.2007.11800.x | null | astro-ph | null | We investigate the acceleration and simultaneous radiative losses of
electrons in the vicinity of relativistic shocks. Particles undergo pitch angle
diffusion, gaining energy as they cross the shock by the Fermi mechanism and
also emitting synchrotron radiation in the ambient magnetic field. A
semi-analytic approach ... | 2009-06-23 |
0704.0169 | Giorgio Calucci | Giorgio Calucci | Very strong and slowly varying magnetic fields as source of axions | 8 pages, no figures | Phys.Rev.D75:097303,2007 | 10.1103/PhysRevD.75.097303 | null | hep-ph | null | The investigation on the production of particles in slowly varying but
extremely intense magnetic field in extended to the case of axions. The
motivation is, as for some previously considered cases, the possibility that
such kind of magnetic field may exist around very compact astrophysical
objects.
| 2008-11-26 |
0704.0171 | Jim Hinton | F. Aharonian, et al | Discovery of a point-like very-high-energy gamma-ray source in Monoceros | 5 pages, 4 figures, to appear in A&A | null | 10.1051/0004-6361:20077299 | null | astro-ph | null | The complex Monoceros Loop SNR/Rosette Nebula region contains several
potential sources of very-high-energy (VHE) gamma-ray emission and two as yet
unidentified high-energy EGRET sources. Sensitive VHE observations are required
to probe acceleration processes in this region. The H.E.S.S. telescope array
has been used... | 2009-11-13 |
0704.0179 | Marco Bellini | Alessandro Zavatta, Valentina Parigi, and Marco Bellini | Experimental nonclassicality of single-photon-added thermal light states | 7 pages, 6 figures, accepted for publication in Phys. Rev. A | PHYSICAL REVIEW A 75, 052106 (2007) | 10.1103/PhysRevA.75.052106 | null | quant-ph | null | We report the experimental realization and tomographic analysis of novel
quantum light states obtained by exciting a classical thermal field by a single
photon. Such states, although completely incoherent, possess a tunable degree
of quantumness which is here exploited to put to a stringent experimental test
some of ... | 2009-11-13 |
0704.0184 | Paolo Padovani | P. Padovani (ESO) | Gamma-ray emitting AGN and GLAST | 5 pages, 1 figure, invited talk at the First GLAST Symposium,
February 5-8, 2007, Stanford University, USA, to appear in the proceedings | AIP Conf.Proc.921:19-23,2007 | 10.1063/1.2757258 | null | astro-ph | null | I describe the different classes of Active Galactic Nuclei (AGN) and the
basic tenets of unified schemes. I then review the properties of the
extragalactic sources detected in the GeV and TeV bands, showing that the vast
majority of them belong to the very rare blazar class. I further discuss the
kind of AGN GLAST is... | 2009-06-23 |
0704.0186 | Ryo Takahasi | Ryo Takahashi and Morimitsu Tanimoto | Dark energy and neutrino model in SUSY -- Remarks on active and sterile
neutrinos mixing -- | 12 pages, 7 figures, to appear in the proceedings of International
Workshop on Neutrino Masses and Mixings -- Toward Unified Understanding of
Quark and Lepton Mass Matrices --, Shizuoka, Japan, 17-19 Dec 2006 | Int.J.Mod.Phys.E16:1529-1540,2007 | 10.1142/S0218301307006861 | null | hep-ph | null | We consider a Mass Varying Neutrinos (MaVaNs) model in supersymmetric theory.
The model includes effects of supersymmetry breaking transmitted by the
gravitational interaction from the hidden sector, in which supersymmetry was
broken, to the dark energy sector. Then evolutions of the neutrino mass and the
equation of... | 2008-11-26 |
0704.0187 | Gabor Worseck | G. Worseck (1), C. Fechner (2,3), L. Wisotzki (1) and A. Dall'Aglio
(1) ((1) Astrophysikalisches Institut Potsdam, (2) Hamburger Sternwarte, (3)
Universit\"at Potsdam) | The transverse proximity effect in spectral hardness on the line of
sight towards HE 2347-4342 | 15 pages, 11 figures, accepted by A&A, major revision of Section 5
following the referee's comments | Astron.Astrophys. 473 (2007) 805 | 10.1051/0004-6361:20077585 | null | astro-ph | null | We report the discovery of 14 quasars in the vicinity of HE2347-4342, one of
the two quasars whose intergalactic HeII forest has been resolved with FUSE. By
analysing the HI and the HeII opacity variations separately, no transverse
proximity effect is detected near three foreground quasars of HE2347-4342:
QSOJ23503-4... | 2011-11-09 |
0704.0192 | Karen O'Neil | K. O'Neil, S. Oey, G. Bothun | Star Formation in Galaxies with Large Lower Surface Brightness Disks | 50 pages; Full paper with all figures available at
http://www.gb.nrao.edu/~koneil; Accepted by AJ | null | 10.1086/518831 | null | astro-ph | null | We present B, R, and Halpha imaging data of 19 large disk galaxies whose
properties are intermediate between classical low surface brightness galaxies
and ordinary high surface brightness galaxies. We use data taken from the
Lowell 1.8m Perkins telescope to determine the galaxies' overall morphology,
color, and star ... | 2009-11-13 |
0704.0196 | Michal Praszalowicz | Karolina Piesciuk, Michal Praszalowicz | Remarks on N_c dependence of decays of exotic baryons | 8 pages, 6 figures to be published in proceedings of YKIS06 in
Progress of Theoretical Physics. In v2 minor typos corrected | Prog.Theor.Phys.Suppl.168:70-77,2007 | 10.1143/PTPS.168.70 | TPJU-03/2007 | hep-ph | null | We calculate the N_c dependence of the decay widths of exotic eikosiheptaplet
within the framework of Chral Quark Soliton Model. We also discuss
generalizations of regular baryon representations for arbitrary N_c.
| 2008-11-26 |
0704.0202 | Simon Perdrix | Simon Perdrix | Towards Minimal Resources of Measurement-based Quantum Computation | 8 pages | New J. Phys. 9 206 (2007) | 10.1088/1367-2630/9/6/206 | null | quant-ph | null | We improve the upper bound on the minimal resources required for
measurement-based quantum computation. Minimizing the resources required for
this model is a key issue for experimental realization of a quantum computer
based on projective measurements. This new upper bound allows also to reply in
the negative to the ... | 2007-09-20 |
0704.0203 | August Muench | August A. Muench, Charles J. Lada, K. L. Luhman, James Muzerolle and
Erick Young | A Spitzer census of the IC 348 nebula | Accepted to AJ; 33 pages in emulateapj format. | Astron.J.134:411-444,2007 | 10.1086/518560 | null | astro-ph | null | We present a Spitzer based census of the IC 348 nebula and embedded star
cluster. Our Spitzer census supplemented by ground based spectra has added 42
class II T-Tauri sources to the cluster membership and identified ~20 class 0/I
protostars. The population of IC 348 likely exceeds 400 sources after
accounting statis... | 2009-06-23 |
0704.0205 | Paolo Esposito | P. Esposito, A. Tiengo, A. De Luca, F. Mattana | Discovery of X-ray emission from the young radio pulsar PSR J1357-6429 | Revised version (minor changes in text and figures). Accepted for
publication on Astronomy and Astrophysics Letters on 10/04/2007 | Astronomy and Astrophysics, Volume 467, Issue 2, May IV 2007,
pp.L45-L48 | 10.1051/0004-6361:20077480 | null | astro-ph | null | We present the first X-ray detection of the very young pulsar PSR J1357-6429
(characteristic age of 7.3 kyr) using data from the XMM-Newton and Chandra
satellites. We find that the spectrum is well described by a power-law plus
blackbody model, with photon index Gamma=1.4 and blackbody temperature kT=160
eV. For the ... | 2009-02-23 |
0704.0209 | Sangwook Park | Sangwook Park, David N. Burrows, Gordon P. Garmire (Penn State),
Richard McCray (Colorado), Judith L. Racusin (Penn State), Svetozar A. Zhekov
(Space Res Inst) | Chandra Observations of Supernova 1987A | 8 pages, 4 figures (including 2 color figs), 3 tables. To appear in
the proceedings of "Supernova 1987A: 20 Years after Supernovae and Gamma-Ray
Bursters", held in Aspen CO. USA, Feb 19-23, 2007 | AIP Conf.Proc.937:43-50,2007 | 10.1063/1.2803606 | null | astro-ph | null | We have been monitoring Supernova (SN) 1987A with {\it Chandra X-Ray
Observatory} since 1999. We present a review of previous results from our {\it
Chandra} observations, and some preliminary results from new {\it Chandra} data
obtained in 2006 and 2007. High resolution imaging and spectroscopic studies of
SN 1987A w... | 2009-06-23 |
0704.0219 | Joseph Gelfand | Joseph D. Gelfand, B. M. Gaensler, Patrick O. Slane, Daniel J.
Patnaude, John P. Hughes, Fernando Camilo | The Radio Emission, X-ray Emission, and Hydrodynamics of G328.4+0.2: A
Comprehensive Analysis of a Luminous Pulsar Wind Nebula, its Neutron Star,
and the Progenitor Supernova Explosion | 27 pages, 11 figures, accepted for publication in The Astrophysical
Journal | Astrophys.J.663:468-486,2007 | 10.1086/518498 | null | astro-ph | null | We present new observational results obtained for the Galactic non-thermal
radio source G328.4+0.2 to determine both if this source is a pulsar wind
nebula or supernova remnant, and in either case, the physical properties of
this source. Using X-ray data obtained by XMM, we confirm that the X-ray
emission from this s... | 2009-06-23 |
0704.0222 | Miguel \'Angel S\'anchez-Conde Mr. | Miguel A. Sanchez-Conde | Dark Matter annihilation in Draco: new considerations on the expected
gamma flux | 2 pages, 2 figures, to appear in the Proceedings of the First
International GLAST Symposium, Stanford University, 5-8 February 2007 | AIP Conf.Proc.921:510-511,2007 | 10.1063/1.2757426 | null | astro-ph | null | A new estimation of the gamma-ray flux that we expect to detect from SUSY
dark matter annihilation from the Draco dSph is presented using the DM density
profiles compatible with the latest observations. This calculation takes also
into account the important effect of the Point Spread Function (PSF) of the
telescope. ... | 2009-06-23 |
0704.0223 | Fu-Yan Bian | Yu-Qing Lou (1,2,3) and Wei-Gang Wang (1), ((1) Tsinghua Center For
astrophysics, Tsinghua University, (2)The University of Chicago, (3) National
Astronomical Observatories, Chinese Academy of Science.) | Magnetohydrodynamic Rebound Shocks of Supernovae | 5 pages, 1 figure, Accepted for publication in MNRAS | Mon.Not.Roy.Astron.Soc.Lett.378:L54-L58,2007 | 10.1111/j.1745-3933.2007.00319.x | null | astro-ph | null | We construct magnetohydrodynamic (MHD) similarity rebound shocks joining
`quasi-static' asymptotic solutions around the central degenerate core to
explore an MHD model for the evolution of random magnetic field in supernova
explosions. This provides a theoretical basis for further studying synchrotron
diagnostics, MH... | 2009-06-23 |
0704.0225 | Alexander Kashlinsky | A. Kashlinsky and D. Band | Exploring First Stars Era with GLAST | to appear in Proceedings of 1st International GLAST Symposium | AIP Conf.Proc.921:243-245,2007 | 10.1063/1.2757312 | null | astro-ph | null | Cosmic infrared background (CIB) includes emissions from objects inaccessible
to current telescopic studies, such as the putative Population III, the first
stars. Recently, strong direct evidence for significant CIB levels produced by
the first stars came from CIB fluctuations discovered in deep Spitzer images.
Such ... | 2009-06-23 |
0704.0226 | Francesco Tombesi | F. Tombesi (1,2), B. De Marco (3), K. Iwasawa (4), M. Cappi (1), M.
Dadina (1), G. Ponti (1,2), G. Miniutti (5) and G.G.C. Palumbo (2) ((1)
INAF-IASF Bologna, (2) UNIBO, (3) SISSA, (4) MPE, (5) Institute of Astronomy,
Cambridge) | Correlated modulation between the redshifted Fe K alpha line and the
continuum emission in NGC 3783 | 8 pages, 7 figures, to be published in Astronomy and Astrophysics | null | 10.1051/0004-6361:20066713 | null | astro-ph | null | It has been suggested that X-ray observations of rapidly variable Seyfert
galaxies may hold the key to probe the gas orbital motions in the innermost
regions of accretion discs around black holes and, thus, trace flow patterns
under the effect of the hole strong gravitational field. We explore this
possibility analiz... | 2009-11-13 |
0704.0230 | Rene Duffard | R. Duffard and F. Roig | Two new basaltic asteroids in the Outer Main Belt? | 13 pages, 3 figures, 2 tables | null | null | null | astro-ph | null | The identification of basaltic asteroids in the asteroid Main Belt and the
description of their surface mineralogy is necessary to understand the
diversity in the collection of basaltic meteorites. Basaltic asteroids can be
identified from their visible reflectance spectra and are classified as V-type
in the usual ta... | 2008-01-14 |
0704.0232 | Christoph Bergbauer | Christoph Bergbauer, Dirk Kreimer | New algebraic aspects of perturbative and non-perturbative Quantum Field
Theory | 15 pages, Contribution to the Proceedings of the ICMP 2006, 2 typos
corrected, final version | in "New Trends in Mathematical Physics; Selected contributions of
the XVth International Congress on Mathematical Physics", V. Sidoravicius
(Ed.), Springer (2009) | null | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this expository article we review recent advances in our understanding of
the combinatorial and algebraic structure of perturbation theory in terms of
Feynman graphs, and Dyson-Schwinger equations. Starting from Lie and Hopf
algebras of Feynman graphs, perturbative renormalization is rephrased
algebraically. The H... | 2009-11-04 |
0704.0234 | Gabriele Ghisellini | G. Ghirlanda (1), L. Nava (1,2), G. Ghisellini (1), C. Firmani (1,3)
((1) Osserv. Astr. di Brera, (2) Univ. degli Studi dell'Insubria, (3)
U.N.A.M.) | Comments on ``Are Swift Gamma-Ray Bursts consistent with the Ghirlanda
relation?", by Campana et al.(astro--ph/0703676) | 3 pages | null | null | null | astro-ph | null | In their recent paper, Campana et al. (2007) found that 5 bursts, among those
detected by Swift, are outliers with respect to the E_peak-E_gamma
("Ghirlanda") correlation. We instead argue that they are not.
| 2007-05-23 |
0704.0237 | Christopher W. Mauche | Christopher W. Mauche, Duane A. Liedahl, Shizuka Akiyama (Lawrence
Livermore Nat'l Lab.), Tomasz Plewa (University of Chicago) | Hydrodynamic and Spectral Simulations of HMXB Winds | 4 pages including 2 color encapsulated postscript figures; LaTeX
format, uses ptptex.cls; submitted for inclusion in the proceedings of "The
Extreme Universe in the Suzaku Era" conference, to be published in Progress
of Theoretical Physics, Supplement. | Prog.Theor.Phys.Suppl.169:196-199,2007 | 10.1143/PTPS.169.196 | null | astro-ph | null | We describe preliminary results of a global model of the radiatively-driven
photoionized wind and accretion flow of the high-mass X-ray binary Vela X-1.
The full model combines FLASH hydrodynamic calculations, XSTAR photoionization
calculations, HULLAC atomic data, and Monte Carlo radiation transport. We
present maps... | 2009-06-23 |
0704.0238 | Geoffrey C. Bower | Geoffrey C. Bower (Berkeley), Alberto Bolatto (Berkeley), Eric Ford
(CfA, Florida), Paul Kalas (Berkeley), Jim Ulvestad (NRAO) | Radio Astrometric Detection and Characterization of Extra-Solar Planets:
A White Paper Submitted to the NSF ExoPlanet Task Force | null | null | null | null | astro-ph | null | The extraordinary astrometric accuracy of radio interferometry creates an
important and unique opportunity for the discovery and characterization of
exo-planets. Currently, the Very Long Baseline Array can routinely achieve
better than 100 microarcsecond accuracy, and can approach 10 microarcsecond
with careful calib... | 2007-05-23 |
0704.0240 | Dam Thanh Son | D. T. Son, A. O. Starinets | Viscosity, Black Holes, and Quantum Field Theory | 23 pages, a review. New proof of the universality of the viscosity
entropy ratio, new derivation of Kubo's formula; references added and minor
typos corrected in version 2 | Ann.Rev.Nucl.Part.Sci.57:95-118,2007 | 10.1146/annurev.nucl.57.090506.123120 | INT PUB 07-02 | hep-th | null | We review recent progress in applying the AdS/CFT correspondence to
finite-temperature field theory. In particular, we show how the hydrodynamic
behavior of field theory is reflected in the low-momentum limit of correlation
functions computed through a real-time AdS/CFT prescription, which we
formulate. We also show ... | 2008-11-26 |
0704.0242 | Vincent L. Fish | Vincent L. Fish (NRAO) | Masers and star formation | 10 pages, iaus.cls, to appear in IAU Symp. 242 proceedings
(Astrophysical masers and their environments) | null | 10.1017/S1743921307012604 | null | astro-ph | null | Recent observational and theoretical advances concerning astronomical masers
in star forming regions are reviewed. Major masing species are considered
individually and in combination. Key results are summarized with emphasis on
present science and future prospects.
| 2009-11-13 |
0704.0251 | Gilad Gour | Gilad Gour, Nolan R. Wallach | Entanglement of Subspaces and Error Correcting Codes | 8 pages, Published Version | Phys. Rev. A 76, 042309 (2007) | 10.1103/PhysRevA.76.042309 | null | quant-ph | null | We introduce the notion of entanglement of subspaces as a measure that
quantify the entanglement of bipartite states in a randomly selected subspace.
We discuss its properties and in particular we show that for maximally
entangled subspaces it is additive. Furthermore, we show that maximally
entangled subspaces can p... | 2011-11-09 |
0704.0252 | Ashutosh Alok | Ashutosh Kumar Alok and S. Uma Sankar | Does the present data on B_s - bar B_s mixing rule out a large
enhancement in the branching ratio of B_s --> mu+ mu- ? | 7 pages, no figures | null | null | null | hep-ph | null | In this letter, we consider the constraints imposed by the recent measurement
of B_s - bar B_s mixing on the new physics contribution to the rare decay B_s
--> mu+ mu-. New physics in the form vector and axial-vector couplings is
already severely constrained by the data on B --> (K,K*) mu+ mu-. Here, we show
that B_s... | 2007-05-23 |
0704.0253 | Paul Harvey | Paul M. Harvey, Luisa M. Rebull, Tim Brooke, William J. Spiesman,
Nicholas Chapman, Tracy L. Huard, Neal J. Evans II, Lucas Cieza, Shih-Ping
Lai, Lori E. Allen, Lee G. Mundy, Deborah L. Padgett, Anneila I. Sargent,
Karl R. Stapelfeldt, Philip C. Myers, Ewine F. van Dishoeck, Geoffrey A.
Blake, David W. Koerner | The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds VIII.
Serpens Observed with MIPS | null | Astrophys.J.663:1139-1148,2007 | 10.1086/518647 | null | astro-ph | null | We present maps of 1.5 square degrees of the Serpens dark cloud at 24, 70,
and 160\micron observed with the Spitzer Space Telescope MIPS Camera. More than
2400 compact sources have been extracted at 24um, nearly 100 at 70um, and 4 at
160um. We estimate completeness limits for our 24um survey from Monte Carlo
tests wi... | 2010-03-18 |
0704.0254 | Alexandre Alves | Alexandre Alves and Oscar Eboli | Unravelling the sbottom spin at the CERN LHC | 9 pages, 11 figures | Phys.Rev.D75:115013,2007 | 10.1103/PhysRevD.75.115013 | null | hep-ph | null | Establishing that a signal of new physics is undoubtly supersymmetric
requires not only the discovery of the supersymmetric partners but also probing
their spins and couplings. We show that the sbottom spin can be probed at the
CERN Large Hadron Collider using only angular correlations in sbottom pair
production with... | 2008-11-26 |
0704.0255 | Felipe Marin | Felipe Marin (Chicago, KICP), Risa Wechsler (KIPAC, Stanford), Joshua
Frieman (Chicago, KICP and Fermilab), Robert Nichol (ICG, Portsmouth) | Modeling the three-point correlation function | 12 pages, 11 figures, ApJ accepted. Corrected typos, minor changes
from referee comments | Astrophys.J.672:849-860,2008 | 10.1086/523628 | null | astro-ph | null | We present new predictions for the galaxy three-point correlation function
(3PCF) using high-resolution dissipationless cosmological simulations of a flat
LCDM Universe which resolve galaxy-size halos and subhalos. We create realistic
mock galaxy catalogs by assigning luminosities and colors to dark matter halos
and ... | 2008-11-26 |
0704.0256 | Paul Harvey | Paul M. Harvey and Andrew Oldag | Multi-spectral Observations of Lunar Occultations: I. Resolving The Dust
Shell Around AFGL 5440 | null | Astrophys.J.663:543-552,2007 | 10.1086/518588 | null | astro-ph | null | We present observations and modeling of a lunar occultation of the
dust-enshrouded carbon star AFGL 5440. The observations were made over a
continuous range of wavelengths from 1 - 4um with a high-speed
spectrophotometer designed expressly for this purpose. We find that the
occultation fringes cannot be fit by any si... | 2009-11-13 |
0704.0259 | Scott J. Kenyon | Scott J. Kenyon, Benjamin C. Bromley, David P. O'Brien, Donald R.
Davis | Formation and Collisional Evolution of Kuiper Belt Objects | 23 pages, 9 figures, 1 table; to appear in `Transneptunian Objects',
Barucci et al. eds., University of Arizona Press | null | null | null | astro-ph | null | This chapter summarizes analytic theory and numerical calculations for the
formation and collisional evolution of KBOs at 20--150 AU. We describe the main
predictions of a baseline self-stirring model and show how dynamical
perturbations from a stellar flyby or stirring by a giant planet modify the
evolution. Althoug... | 2007-05-23 |
0704.0261 | Scott Randall | Scott W. Randall, Maxim Markevitch, Douglas Clowe, Anthony H.
Gonzalez, and Marusa Bradac | Constraints on the Self-Interaction Cross-Section of Dark Matter from
Numerical Simulations of the Merging Galaxy Cluster 1E 0657-5 | null | null | 10.1086/587859 | null | astro-ph | null | (Abridged) We compare recent results from X-ray, strong lensing, weak
lensing, and optical observations with numerical simulations of the merging
galaxy cluster 1E0657-56. X-ray observations reveal a bullet-like subcluster
with a prominent bow shock, while lensing results show that the positions of
the total mass pea... | 2009-11-13 |
0704.0262 | Matteo Bertolini | Riccardo Argurio, Matteo Bertolini, Gabriele Ferretti, Alberto Lerda
and Christoffer Petersson | Stringy Instantons at Orbifold Singularities | Latex, 29 pages, 6 figures. v3: typos corrected, one comment and refs
added, published version | JHEP 0706:067,2007 | 10.1088/1126-6708/2007/06/067 | null | hep-th | null | We study the effects produced by D-brane instantons on the holomorphic
quantities of a D-brane gauge theory at an orbifold singularity. These effects
are not limited to reproducing the well known contributions of the gauge theory
instantons but also generate extra terms in the superpotential or the
prepotential. On t... | 2009-11-13 |
0704.0265 | Stefano Covino | A. Dolcini, F. Farfanelli, S. Ciprini, A. Treves, S. Covino, G. Tosti,
E. Pian, B. Sbarufatti, E. Molinari, G. Chincarini, F.M. Zerbi, G. Malaspina,
P. Conconi, L. Nicastro, E. Palazzi, V. Testa, F. Vitali, L.A. Antonelli, J.
Danziger, G. Tagliaferri, E. Meurs, S. Vergani, A. Fernandez-Soto, E.
Distefano, G. Cu... | REM near-IR and optical multiband observations of PKS2155-304 in 2005 | This paper is the corrected version of the paper published in A&A 469
503. It contains the material in the "Errata Corrrige", in press in A&A | Astron.Astrophys.469:503,2007 | 10.1051/0004-6361:20066477 | null | astro-ph | null | Spectral variability is the main tool for constraining emission models of BL
Lac objects. By means of systematic observations of the BL Lac prototype PKS
2155-304 in the infrared-optical band, we explore variability on the scales of
months, days and hours. We made our observations with the robotic 60 cm
telescope R... | 2009-11-16 |
0704.0266 | Jennifer L. Hoffman | Jennifer L. Hoffman | Supernova Polarization and the Type IIn Classification | 5 pages, 4 figures; to appear in "Supernova 1987A: 20 Years After:
Supernovae and Gamma-Ray Bursters", AIP, New York, eds. S. Immler, K.W.
Weiler, and R. McCray. v2: References added, typos corrected, and figures
slightly modified for legibility when reduced in size | AIP Conf.Proc.937:365-369,2007 | 10.1063/1.2803592 | null | astro-ph | null | While the members of the Type IIn category of supernovae are united by the
presence of strong multicomponent Balmer emission lines in their spectra, they
are quite heterogeneous with respect to other properties such as Balmer line
profiles, light curves, strength of radio emission, and intrinsic brightness.
We are no... | 2009-06-23 |
0704.0267 | Cynthia S. Froning | C.S. Froning, E.L. Robinson, and M.A. Bitner | Near-Infrared Spectra of the Black Hole X-Ray Binary, A0620-00 | Accepted for publication in the Astrophysical Journal | Astrophys.J.663:1215-1224,2007 | 10.1086/518820 | null | astro-ph | null | We present broadband NIR spectra of A0620-00 obtained with SpeX on the IRTF.
The spectrum is characterized by a blue continuum on which are superimposed
broad emission lines of HI and HeII and a host of narrower absorption lines of
neutral metals and molecules. Spectral type standard star spectra scaled to the
deredd... | 2009-06-23 |
0704.0268 | Mark Whitney | Mark Whitney, Nemanja Isailovic, Yatish Patel, John Kubiatowicz | Automated Generation of Layout and Control for Quantum Circuits | 16 pages, 11 figures, To appear in ACM Computing Frontiers 2007, this
version contains expanded related work | null | null | null | quant-ph | null | We present a computer-aided design flow for quantum circuits, complete with
automatic layout and control logic extraction. To motivate automated layout for
quantum circuits, we investigate grid-based layouts and show a performance
variance of four times as we vary grid structure and initial qubit placement.
We then p... | 2009-09-29 |
0704.0269 | Manasvita Joshi | M. Joshi and M. Boettcher | Modeling the Spectral Energy Distribution and Variability of 3C 66A
during the WEBT campaign of 2003 -- 2004 | 23 pages, 9 figures, submitted to and accepted for publication in ApJ | Astrophys.J.662:884-891,2007 | 10.1086/518210 | null | astro-ph | null | The BL Lac object 3C 66A was observed in an extensive multiwavelength
monitoring campaign from July 2003 till April 2004. The spectral energy
distribution (SED) was measured over the entire electromagnetic spectrum, with
flux measurements from radio to X-ray frequencies and upper limits in the very
high energy (VHE) ... | 2009-06-23 |
0704.0270 | Xavier Bonfils | X. Bonfils, M. Mayor, X. Delfosse, T. Forveille, M. Gillon, C.
Perrier, S. Udry, F. Bouchy, C. Lovis, F. Pepe, D. Queloz, N. C. Santos and
J.-L. Bertaux | The HARPS search for southern extra-solar planets. X. A m sin i = 11
Mearth planet around the nearby spotted M dwarf GJ 674 | submitted to A&A (January 09, 2007) | null | 10.1051/0004-6361:20077068 | null | astro-ph | null | Context: How planet properties depend on stellar mass is a key diagnostic of
planetary formation mechanisms. Aims: This motivates planet searches around
stars which are significantly more massive or less massive than the Sun, and in
particular our radial velocity search for planets around very-low mass stars.
Methods... | 2009-11-13 |
0704.0272 | Monica Ivette Rodriguez | Monica Ivette Rodriguez, Tommy Wiklind, Ronald J. Allen, Vladimir
Escalante, and Laurent Loinard | A Comparison between Anomalous 6-cm H$_2$CO Absorption and CO(1-0)
Emission in the L1204/S140 | 9 pages 6 figures ApJ:accepted | Astrophys.J.663:824-833,2007 | 10.1086/518553 | null | astro-ph | null | We report observations of the dust cloud L1204 with the Onsala 25-m telescope
in the 6 cm (1$_{11}-1_{10}$) transition of \htco. The observed region includes
the
S140 H${\alpha}$ arc. This spectral line is seen here in absorption against
the cosmic microwave background, indicating the presence of widespread warm
mo... | 2009-06-23 |
0704.0276 | Maik Wolleben | M. Wolleben | A New Model For The Loop-I (The North Polar Spur) Region | 17 pages, 6 figures, to appear in ApJ | Astrophys.J.664:349-356,2007 | 10.1086/518711 | null | astro-ph | null | The North Polar Spur (NPS) is the brightest filament of Loop I, a large
circular feature in the radio continuum sky. In this paper, a model consisting
of two synchrotron emitting shells is presented that reproduces large-scale
structures revealed by recent polarization surveys. The polarized emission of
the NPS is re... | 2009-06-23 |
0704.0279 | Andreea O. Petric | A. O. Petric and M. P. Rupen | HI velocity dispersion in NGC 1058 | 29 pages, 16 figures reduced to the lowest qual. to fit the astro-ph
size requirements, accepted by AJ | Astron.J.134:1952-1962,2007 | 10.1086/518558 | null | astro-ph | null | We present excellent resolution and high sensitivity Very Large Array (VLA)
observations of the 21cm HI line emission from the face-on galaxy NGC 1058,
providing the first reliable study of the HI profile shapes throughout the
entire disk of an external galaxy. Our observations show an intriguing picture
of the inter... | 2009-06-23 |
0704.0280 | Ronald F. Webbink | Ronald F. Webbink (University of Illinois at Urbana-Champaign) | Common Envelope Evolution Redux | 25 pages, 6 figures. To appear in "Short Period Binary Stars", ed.
E.F. Milone, D.A. Leahy, & D.W. Hobill (Springer) | null | 10.1007/978-1-4020-6544-6_13 | null | astro-ph | null | Common envelopes form in dynamical time scale mass exchange, when the
envelope of a donor star engulfs a much denser companion, and the core of the
donor plus the dense companion star spiral inward through this dissipative
envelope. As conceived by Paczynski and Ostriker, this process must be
responsible for the crea... | 2015-11-11 |
0704.0281 | Denis Richard | Denis Richard | The Source of Turbulence in Astrophysical Disks: An Ill-posed Problem. | UCSC-NASA Ames Research Center Workshop on Stellar and Planets
Formation March 29, 2007 | null | null | null | astro-ph | null | An critical overview of the current state of research in turbulence in
astrophysical disks.
| 2007-05-23 |
0704.0287 | Pablo M. Saz Parkinson | Pablo M. Saz Parkinson (Milagro Collaboration) | Search for Very High Energy Emission from Gamma-Ray Bursts using Milagro | To appear in "Proceedings of the First International GLAST
Symposium", Febuary 5-8, 2007, Stanford University, AIP, Eds. S. Ritz, P. F.
Michelson, and C. Meegan | null | 10.1063/1.2757406 | null | astro-ph | null | Gamma-Ray Bursts (GRBs) have been detected at GeV energies by EGRET and
models predict emission at > 100 GeV. Milagro is a wide field (2 sr) high duty
cycle (> 90 %) ground based water Cherenkov detector that records extensive air
showers in the energy range 100 GeV to 100 TeV. We have searched for very high
energy e... | 2009-11-13 |
0704.0290 | Jarrod R. Hurley | Jarrod R. Hurley, Sverre J. Aarseth, Michael M. Shara | The core binary fractions of star clusters from realistic simulations | 34 pages, 12 figures, accepted for publication in the Astrophysical
Journal | Astrophys.J.665:707-718,2007 | 10.1086/517879 | null | astro-ph | null | We investigate the evolution of binary fractions in star clusters using
N-body models of up to 100000 stars. Primordial binary frequencies in these
models range from 5% to 50%. Simulations are performed with the NBODY4 code and
include a full mass spectrum of stars, stellar evolution, binary evolution and
the tidal f... | 2009-06-23 |
0704.0292 | Gregory Soyez | Gavin P. Salam and Gregory Soyez | A practical Seedless Infrared-Safe Cone jet algorithm | 42 pages, 11 figures. SISCone, the C++ implementation of the
algorithm, is available at http://projects.hepforge.org/siscone/
(standalone), http://www.lpthe.jussieu.fr/~salam/fastjet/ (FastJet plugin).
v2: FastJet URL corrected | JHEP 0705:086,2007 | 10.1088/1126-6708/2007/05/086 | null | hep-ph | null | Current cone jet algorithms, widely used at hadron colliders, take event
particles as seeds in an iterative search for stable cones. A longstanding
infrared (IR) unsafety issue in such algorithms is often assumed to be solvable
by adding extra `midpoint' seeds, but actually is just postponed to one order
higher in th... | 2009-11-13 |
0704.0293 | Mikhail Voloshin | S. Dubynskiy, A. Le Yaouanc, L. Oliver, J.-C. Raynal and M.B. Voloshin | Isospin breaking in the yield of heavy meson pairs in e+e- annihilation
near threshold | 16 pages, 2 figures | Phys.Rev.D75:113001,2007 | 10.1103/PhysRevD.75.113001 | FTPI-MINN-07/08, UMN-TH-2541/07, LPT-Orsay/07-19 | hep-ph | null | We revisit the problem of interplay between the strong and the Coulomb
interaction in the charged-to-neutral yield ratio for $B {\bar B}$ and $D {\bar
D}$ pairs near their respective thresholds in $e^+e^-$ annihilation. We
consider here a realistic situation with a resonant interaction in the isospin
I=0 channel and ... | 2008-11-26 |
0704.0294 | Scott A. Yost | B.F.L. Ward and S.A. Yost | QED x QCD Resummation and Shower/ME Matching for LHC Physics | 12 pages, LaTex with packages amsmath, amssymb | ActaPhys.Polon.B38:2395-2403,2007 | null | BU-HEPP-07/02 | hep-ph | null | We present the theory of QED x QCD resummation and its interplay with
shower/matrix element matching in precision LHC physics scenarios. We
illustrate the theory using single heavy gauge boson production at hadron
colliders.
| 2008-11-26 |
0704.0296 | Itzhak Bars | Itzhak Bars and Bora Orcal | Generalized Twistor Transform And Dualities, With A New Description of
Particles With Spin, Beyond Free and Massless | 33 pages | Phys.Rev.D75:104015,2007 | 10.1103/PhysRevD.75.104015 | USC-07/HEP-B3 | hep-th | null | A generalized twistor transform for spinning particles in 3+1 dimensions is
constructed that beautifully unifies many types of spinning systems by mapping
them to the same twistor, thus predicting an infinite set of duality relations
among spinning systems with different Hamiltonians. Usual 1T-physics is not
equipped... | 2008-11-26 |
0704.0297 | Sung-Chul Yoon | Sung-Chul Yoon, Philipp Podsiadlowski and Stephan Rosswog | Remnant evolution after a carbon-oxygen white dwarf merger | 15 pages, 15 figures, 3 tables, submitted to MNRAS (Low resolution
version; a high resolution version can be found at:
http://www.astro.uva.nl/~scyoon/papers/wdmerger.pdf) | null | 10.1111/j.1365-2966.2007.12161.x | null | astro-ph | null | We systematically explore the evolution of the merger of two carbon-oxygen
(CO) white dwarfs. The dynamical evolution of a 0.9 Msun + 0.6 Msun CO white
dwarf merger is followed by a three-dimensional SPH simulation. We use an
elaborate prescription in which artificial viscosity is essentially absent,
unless a shock i... | 2019-08-19 |
0704.0307 | Eric L. N. Jensen | Eric L. N. Jensen (1), Saurav Dhital (1,2), Keivan G. Stassun (2),
Jenny Patience (3), William Herbst (4), Frederick M. Walter (5), Michal Simon
(5), Gibor Basri (6); (1 - Swarthmore College; 2 - Vanderbilt; 3 - Caltech; 4
- Wesleyan University; 5 - SUNY Stony Brook; 6 - UC Berkeley) | Periodic accretion from a circumbinary disk in the young binary UZ Tau E | Accepted by the Astronomical Journal; to appear July 2007; Corrected
minor typos | Astron.J.134:241-251,2007 | 10.1086/518408 | null | astro-ph | null | Close pre-main-sequence binary stars are expected to clear central holes in
their protoplanetary disks, but the extent to which material can flow from the
circumbinary disk across the gap onto the individual circumstellar disks has
been unclear. In binaries with eccentric orbits, periodic perturbation of the
outer di... | 2009-06-23 |
0704.0310 | Xiang Liu | Xiang Liu, Lang Cui, Wen-Feng Luo, Wei-Zhao Shi, Hua-Gang Song (Urumqi
Observatory, NAOC) | VLBI observations of nineteen GHz-Peaked-Spectrum radio sources at 1.6
GHz | 11 pages, 12 figures, to appear in AA | A&A 470, 97-104 (2007) | 10.1051/0004-6361:20077265 | null | astro-ph | null | Aims and Methods: We present the results of VLBI observations of nineteen
GHz-Peaked-Spectrum (GPS) radio sources at 1.6 GHz. Of them, 15 sources are
selected from the Parkes Half Jansky (PHJ) sample (Snellen 2002), 4 others are
from our previous observation list. We aimed at imaging the structure of GPS
sources, sea... | 2007-07-10 |
0704.0312 | Geraint F. Lewis | Matthew J. Francis, Geraint F. Lewis, Eric V. Linder | Power Spectra to 1% Accuracy between Dynamical Dark Energy Cosmologies | 9 pages, 14 figures, submitted to MNRAS | Mon.Not.Roy.Astron.Soc.380:1079,2007 | 10.1111/j.1365-2966.2007.12139.x | GFL-001 | astro-ph | null | For dynamical dark energy cosmologies we carry out a series of N-body
gravitational simulations, achieving percent level accuracy in the relative
mass power spectra at any redshift. Such accuracy in the power spectrum is
necessary for next generation cosmological mass probes. Our matching procedure
reproduces the CMB... | 2009-06-23 |
0704.0316 | Alister W. Graham | Alister W. Graham, Simon P. Driver, Paul D. Allen, Jochen Liske | The Millennium Galaxy Catalogue: The local supermassive black hole mass
function in early- and late-type galaxies | 10 pages of text plus 5 of figs and refs. MNRAS, accepted. | Mon.Not.Roy.Astron.Soc.378:198-210,2007 | 10.1111/j.1365-2966.2007.11770.x | null | astro-ph | null | We provide a new estimate of the local supermassive black hole mass function
using (i) the empirical relation between supermassive black hole mass and the
Sersic index of the host spheroidal stellar system and (ii) the measured
(spheroid) Sersic indices drawn from 10k galaxies in the Millennium Galaxy
Catalogue. The ... | 2012-04-26 |
0704.0323 | Heng Fan | Gui-Fang Dang, and Heng Fan | General sequential quantum cloning | 4 pages | J.Phys.A 41, 155303 (2008) | 10.1088/1751-8113/41/15/155303 | null | quant-ph | null | Some multipartite quantum states can be generated in a sequential manner
which may be implemented by various physical setups like microwave and optical
cavity QED, trapped ions, and quantum dots etc. We analyze the general N to M
qubits Universal Quantum Cloning Machine (UQCM) within a sequential generation
scheme. W... | 2012-05-23 |
0704.0328 | Seung Woo Ham | S.W. Ham, E.J. Yoo, S.K. OH | Electroweak phase transitions in the MSSM with an extra $U(1)'$ | 17 pages, 2 tables, 3 figures | Phys.Rev.D76:075011,2007 | 10.1103/PhysRevD.76.075011 | null | hep-ph | null | We investigate the possibility of electroweak phase transition in the minimal
supersymmetric standard model (MSSM) with an extra $U(1)'$. This model has two
Higgs doublets and a singlet, in addition to a singlet exotic quark superfield.
We find that at the one-loop level this model may accommodate the electroweak
pha... | 2008-11-26 |
0704.0330 | Jacobus Verbaarschot | K. Splittorff and J.J.M. Verbaarschot | Random Matrix Theory at Nonzero $\mu$ and $T$ | Invited talk at YKIS2006, YITP-Kyoto, 10 pages, 10 figures | Prog.Theor.Phys.Suppl.168:265-275,2007 | 10.1143/PTPS.168.265 | null | hep-ph | null | We review applications of random matrix theory to QCD at nonzero temperature
and chemical potential. The chiral phase transition of QCD and QCD-like
theories is discussed in terms of eigenvalues of the Dirac operator. We show
that for QCD at $\mu \ne 0$, which has a sign problem, the discontinuity in the
chiral conde... | 2008-11-26 |
0704.0340 | Fam Le Kien | Fam Le Kien, S. Dutta Gupta, and K. Hakuta | Phonon-mediated decay of an atom in a surface-induced potential | 14 pages, 15 figures | null | null | null | quant-ph | null | We study phonon-mediated transitions between translational levels of an atom
in a surface-induced potential. We present a general master equation governing
the dynamics of the translational states of the atom. In the framework of the
Debye model, we derive compact expressions for the rates for both upward and
downwar... | 2007-05-23 |
0704.0341 | Boris Ermolaev | B.I. Ermolaev, M. Greco, S.I. Troyan | Infrared Evolution Equations: Method and Applications | Talk given at Cracow Epiphany conference on precision physics and
Monte Carlos for LHS. 4-6 January 2007, Cracow, Poland. 12 pp, 3 figures. | Acta Phys.Polon.B38:2243-2260,2007 | null | null | hep-ph | null | It is a brief review on composing and solving Infrared Evolution Equations.
They can be used in order to calculate amplitudes of high-energy reactions in
different kinematic regions in the double-logarithmic approximation.
| 2011-04-11 |
0704.0344 | Fabrizio Tavecchio | L. Maraschi, G. Ghisellini, F. Tavecchio | The Blazar Spectral Sequence and GLAST | 3 pages, 4 figures. Proceedings of the First GLAST Symposium, to be
published | AIP Conf.Proc.921:160-162,2007 | 10.1063/1.2757292 | null | astro-ph | null | The present status and understanding of the "spectral sequence" of blazars is
discussed in the perspective of the upcoming GLAST launch. The vast improvement
in sensitivity will allow to i) determine more objectively the "average"
gamma-ray properties of classes objects ii) probe more deeply the ratio between
accreti... | 2009-06-23 |
0704.0346 | Kenji Hamaguchi | Kenji Hamaguchi, the Suzaku Eta Carinae team and the Carinae D-1 team | Diffuse X-ray Emission from the Carina Nebula Observed with Suzaku | 4 pages, 2 figures, proceeding of the extreme universe in the Suzaku
era, held in Kyoto, Japan on Dec. 4-8, 2006 | null | 10.1143/PTPS.169.174 | null | astro-ph | null | A number of giant HII regions are associated with soft diffuse X-ray
emission. Among these, the Carina nebula possesses the brightest soft diffuse
emission. The required plasma temperature and thermal energy can be produced by
collisions or termination of fast winds from main-sequence or embedded young O
stars, but t... | 2009-11-13 |
0704.0348 | Grazyna Stasinska | G. Stasinska | What can emission lines tell us? | 55 pages, Lectures given at the XVIII Canary Island Winterschool "The
emission line Universe", to be published by Cambridge University Press | null | 10.1017/CBO9780511552038.003 | null | astro-ph | null | 1 Generalities
2 Empirical diagnostics based on emission lines
3 Photoionization modelling
4 Pending questions
5 Appendix: Lists of useful lines and how to deal with them
| 2023-06-07 |
0704.0350 | Sonia Fornasier | S. Fornasier, E. Dotto, O. Hainaut, F. Marzari, H. Boehnhardt, F. De
Luise, M. A. Barucci | Visible spectroscopic and photometric survey of Jupiter Trojans: final
results on dynamical families | 52 pages, 14 figure, paper accepted for publication in Icarus | null | 10.1016/j.icarus.2007.03.033 | null | astro-ph | null | We present the results of a visible spectroscopic and photometric survey of
Jupiter Trojans belonging to different dynamical families carried out at the
ESO-NTT telescope. We obtained data on 47 objects, 23 belonging to the L5 swarm
and 24 to the L4 one. These data together with those already published by
Fornasier e... | 2009-11-13 |
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