Datasets:

juliensimon
/

lhaaso-gamma-ray-sources

source_name string	source_name_flag string	component string	component_flag string	ra_deg float64	dec_deg float64	pos_error_deg float64	extension_deg float64	extension_error_deg float64	significance float64	diff_flux_norm float64	diff_flux_norm_error float64	spectral_index float64	spectral_index_error float64	ts_above_100tev float64	association string	association_flag string	association_separation_deg float64	simbad_name string	is_extended bool	has_association bool
J0007+5659	u	KM2A	null	1.86	57	0.12	0	0.18	86.5	0.33	0.05	3.1	0.2	43.6	null	null	null	1LHAASO J0007+5659u	false	false
J0007+5659	u	WCDA	null	1.86	57	0.12	0	0.18	86.5	0	0.27	3.1	0.2	null	null	null	null	1LHAASO J0007+5659u	false	false
J0007+7303	u	KM2A	null	1.91	73.07	0.07	0.17	0.03	361	3.41	0.27	3.4	0.12	171.6	CTA 1	null	0.12	1LHAASO J0007+7303u	true	true
J0007+7303	u	WCDA	null	1.48	73.15	0.1	0	0.22	141.6	5.01	1.11	2.74	0.11	null	null	null	null	1LHAASO J0007+7303u	false	false
J0056+6346	u	KM2A	null	14.1	63.77	0.08	0.24	0.03	380.2	1.47	0.1	3.33	0.1	94.1	null	null	null	1LHAASO J0056+6346u	true	false
J0056+6346	u	WCDA	null	13.78	63.96	0.15	0.33	0.07	106.1	1.45	0.41	2.35	0.13	null	null	null	null	1LHAASO J0056+6346u	true	false
J0206+4302	u	KM2A	null	31.7	43.05	0.13	0	0.27	96	0.24	0.03	2.62	0.16	82.8	null	null	null	1LHAASO J0206+4302u	false	false
J0206+4302	u	WCDA	null	31.7	43.05	0.13	0	0.27	96	0	0.09	2.62	0.16	null	null	null	null	1LHAASO J0206+4302u	false	false
J0212+4254	u	KM2A	null	33.01	42.91	0.2	0	0.31	38.4	0.12	0.03	2.45	0.23	30.2	null	null	null	1LHAASO J0212+4254u	false	false
J0212+4254	u	WCDA	null	33.01	42.91	0.2	0	0.31	38.4	0	0.07	2.45	0.23	null	null	null	null	1LHAASO J0212+4254u	false	false
J0216+4237	u	WCDA	null	34.1	42.63	0.1	0	0.13	102	0	0.2	2.58	0.17	null	null	null	null	1LHAASO J0216+4237u	false	false
J0216+4237	u	KM2A	null	34.1	42.63	0.1	0	0.13	102	0.18	0.03	2.58	0.17	65.6	null	null	null	1LHAASO J0216+4237u	false	false
J0249+6022	null	KM2A	null	42.39	60.37	0.16	0.38	0.08	148.8	0.93	0.09	3.82	0.18	null	null	null	null	1LHAASO J0249+6022	true	false
J0249+6022	null	WCDA	null	41.52	60.49	0.4	0.71	0.1	53.3	1.96	0.51	2.52	0.16	null	null	null	null	1LHAASO J0249+6022	true	false
J0339+5307	null	KM2A	null	54.79	53.13	0.11	0	0.22	144	0.58	0.06	3.64	0.16	null	LHAASO J0341+5258	null	0.37	1LHAASO J0339+5307	false	true
J0339+5307	null	WCDA	null	54.79	53.13	0.11	0	0.22	144	0	0.21	3.64	0.16	null	null	null	null	1LHAASO J0339+5307	false	false
J0343+5254	u*	KM2A	null	55.79	52.91	0.08	0.2	0.02	388.1	1.07	0.07	3.53	0.1	20.2	LHAASO J0341+5258	null	0.28	1LHAASO J0343+5254u	true	true
J0343+5254	u*	WCDA	null	55.34	53.05	0.18	0.33	0.05	94.1	0.29	0.13	1.7	0.19	null	null	null	null	1LHAASO J0343+5254u	true	false
J0359+5406	null	KM2A	null	59.78	54.1	0.1	0.3	0.04	259.2	0.85	0.06	3.84	0.15	null	null	null	null	1LHAASO J0359+5406	true	false
J0359+5406	null	WCDA	null	59.68	54.21	0.14	0.22	0.05	59.3	0.18	0.12	1.74	0.28	null	null	null	null	1LHAASO J0359+5406	true	false
J0428+5531	*	KM2A	null	66.63	54.63	0.18	0.32	0.06	98	0.54	0.06	3.45	0.19	null	null	null	null	1LHAASO J0428+5531	true	false
J0428+5531	*	WCDA	null	67.23	55.53	0.36	1.18	0.12	153.8	4.73	0.65	2.66	0.1	null	null	null	null	1LHAASO J0428+5531	true	false
J0500+4454	null	KM2A	null	75.01	44.92	0.28	0.41	0.07	43.6	0	0.09	2.53	0.2	null	null	null	null	1LHAASO J0500+4454	true	false
J0500+4454	null	WCDA	null	75.01	44.92	0.28	0.41	0.07	43.6	0.69	0.16	2.53	0.2	null	null	null	null	1LHAASO J0500+4454	true	false
J0534+2200	u	WCDA	null	83.62	22.01	0.004	0	0.04	73,603.7	21.1	0.11	2.69	0.01	null	Crab	null	0.01	1LHAASO J0534+2200u	false	true
J0534+2200	u	KM2A	null	83.61	22.04	0.011	0	0.06	14,328.1	6.23	0.1	3.19	0.03	2,381.4	null	null	null	1LHAASO J0534+2200u	false	false
J0534+3533	null	KM2A	null	83.53	35.56	0.18	0	0.36	60.8	0.19	0.03	4.89	0.53	null	null	null	null	1LHAASO J0534+3533	false	false
J0534+3533	null	WCDA	null	83.38	35.48	0.18	0	0.36	50.4	0.43	0.11	2.37	0.21	null	null	null	null	1LHAASO J0534+3533	false	false
J0542+2311	u	KM2A	null	85.71	23.2	0.14	0.98	0.05	745.3	2.93	0.12	3.74	0.09	21.2	HAWC J0543+233	null	0.21	1LHAASO J0542+2311u	true	true
J0542+2311	u	WCDA	*	86.07	23.19	0.5	1.45	0.18	136.9	2.08	0.54	1.95	0.13	null	null	null	null	1LHAASO J0542+2311u	true	false
J0617+2234	null	WCDA	null	94.35	22.57	0.18	0.59	0.08	243.4	1.95	0.27	2.92	0.14	null	IC 443	null	0.14	1LHAASO J0617+2234	true	true
J0617+2234	null	KM2A	null	94.35	22.57	0.18	0.59	0.08	243.4	0	0.17	2.92	0.14	null	null	null	null	1LHAASO J0617+2234	true	false
J0622+3754	null	KM2A	null	95.5	37.9	0.08	0.46	0.03	615	1.42	0.07	3.68	0.1	null	LHAASO J0621+3755	null	0.03	1LHAASO J0622+3754	true	true
J0622+3754	null	WCDA	null	95.67	37.93	0.29	0.5	0.09	59.3	0.39	0.17	1.82	0.22	null	null	null	null	1LHAASO J0622+3754	true	false
J0631+1040	null	WCDA	null	97.77	10.67	0.11	0	0.3	141.6	0	0.36	3.33	0.16	null	null	null	null	1LHAASO J0631+1040	false	false
J0631+1040	null	KM2A	null	97.77	10.67	0.11	0	0.3	141.6	0.54	0.06	3.33	0.16	null	3HWC J0631+107	null	0.06	1LHAASO J0631+1040	false	true
J0634+1741	u	KM2A	null	98.57	17.69	0.1	0.89	0.04	1,043.3	4.42	0.15	3.69	0.06	23	Geminga	null	0.54	1LHAASO J0634+1741u	true	true
J0634+1741	u	WCDA	null	98.51	17.72	0.28	1.16	0.17	193.2	1.53	0.65	1.65	0.15	null	null	null	null	1LHAASO J0634+1741u	true	false
J0635+0619	null	KM2A	null	98.76	6.33	0.23	0.6	0.07	106.1	0.94	0.1	3.67	0.18	null	HAWC J0635+070	null	0.67	1LHAASO J0635+0619	true	true
J0635+0619	null	WCDA	null	98.76	6.33	0.23	0.6	0.07	106.1	0	0.9	3.67	0.18	null	null	null	null	1LHAASO J0635+0619	true	false
J0703+1405	null	KM2A	null	105.83	14.1	0.26	1.88	0.09	841	6.3	0.23	3.98	0.08	null	2HWC J0700+143	null	0.72	1LHAASO J0703+1405	true	true
J0703+1405	null	WCDA	null	105.32	14.55	0.48	1.3	0.21	90.2	2.27	0.74	1.98	0.12	null	null	null	null	1LHAASO J0703+1405	true	false
J1104+3810	null	WCDA	null	166.07	38.18	0.01	0	0.04	5,343.6	3.68	0.1	3.41	0.03	null	Markarian 421	null	0.02	1LHAASO J1104+3810	false	true
J1104+3810	null	KM2A	null	166.07	38.18	0.01	0	0.04	5,343.6	0	0.06	3.41	0.03	null	null	null	null	1LHAASO J1104+3810	false	false
J1219+2915	null	KM2A	null	184.98	29.25	0.09	0	0.08	50.4	0	0.05	2.67	0.17	null	null	null	null	1LHAASO J1219+2915	false	false
J1219+2915	null	WCDA	null	184.98	29.25	0.09	0	0.08	50.4	0.34	0.06	2.67	0.17	null	null	null	null	1LHAASO J1219+2915	false	false
J1653+3943	null	WCDA	null	253.43	39.73	0.01	0	0.04	4,121.6	3.77	0.08	2.94	0.02	null	Markarian 501	null	0.04	1LHAASO J1653+3943	false	true
J1653+3943	null	KM2A	null	253.43	39.73	0.01	0	0.04	4,121.6	0	0.07	2.94	0.02	null	null	null	null	1LHAASO J1653+3943	false	false
J1727+5016	null	WCDA	null	261.89	50.28	0.1	0	0.08	43.6	0.49	0.08	3.09	0.21	null	1ES 1727+502	null	0.14	1LHAASO J1727+5016	false	true
J1727+5016	null	KM2A	null	261.89	50.28	0.1	0	0.08	43.6	0	0.03	3.09	0.21	null	null	null	null	1LHAASO J1727+5016	false	false
J1740+0948	u	KM2A	null	265.03	9.81	0.07	0	0.11	156.2	0.41	0.04	3.13	0.15	37.2	3HWC J1739+099	null	0.13	1LHAASO J1740+0948u	false	true
J1740+0948	u	WCDA	null	265.03	9.81	0.07	0	0.11	156.2	0	0.29	3.13	0.15	null	null	null	null	1LHAASO J1740+0948u	false	false
J1809-1918	u	KM2A	null	272.38	-19.3	0.13	0	0.22	134.6	9.46	1.27	3.51	0.26	88.4	HESS J1809-193	null	0.24	1LHAASO J1809-1918u	false	true
J1809-1918	u	WCDA	null	272.66	-19.32	0.2	0.35	0.06	54.8	3.46	0.61	2.24	0.06	null	null	null	null	1LHAASO J1809-1918u	true	false
J1813-1245	null	WCDA	null	273.35	-12.73	0.21	0	0.32	37.2	2.44	0.44	2.61	0.08	null	null	null	null	1LHAASO J1813-1245	false	false
J1813-1245	null	KM2A	null	273.36	-12.75	0.22	0	0.31	42.2	1.42	0.27	3.66	0.34	null	HESS J1813-126	null	0.07	1LHAASO J1813-1245	false	true
J1814-1636	u	KM2A	null	273.72	-16.62	0.3	0.68	0.08	132.2	11.9	1.3	3.74	0.2	50.4	2HWC J1814-173	null	0.72	1LHAASO J1814-1636u	true	true
J1814-1636	u	WCDA	null	273.72	-16.62	0.3	0.68	0.08	132.2	0	19.71	3.74	0.2	null	null	null	null	1LHAASO J1814-1636u	true	false
J1814-1719	u*	WCDA	null	273.69	-17.33	0.27	0.71	0.07	118.8	26.5	2.46	2.83	0.06	null	2HWC J1814-173	null	0.16	1LHAASO J1814-1719u	true	true
J1814-1719	u*	KM2A	null	273.27	-17.89	0.17	0	0.27	59.3	4.2	0.75	3.49	0.31	41	null	null	null	1LHAASO J1814-1719u	false	false
J1825-1256	u	KM2A	null	276.44	-12.94	0.08	0	0.2	259.2	5.08	0.42	3.33	0.13	121	HESS J1826-130	null	0.14	1LHAASO J1825-1256u	false	true
J1825-1256	u	WCDA	null	276.55	-13.04	0.08	0.24	0.03	231	8.27	0.54	2.61	0.03	null	null	null	null	1LHAASO J1825-1256u	true	false
J1825-1337	u	KM2A	null	276.45	-13.63	0.05	0	0.18	453.7	10.1	0.61	3.28	0.09	249.6	HESS J1825-137	null	0.15	1LHAASO J1825-1337u	false	true
J1825-1337	u	WCDA	null	276.55	-13.73	0.05	0.17	0.02	289	10.4	0.56	2.55	0.03	null	null	null	null	1LHAASO J1825-1337u	true	false
J1825-1418	null	WCDA	null	276.29	-14.32	0.19	0.81	0.05	210.2	39.2	2.3	2.98	0.05	null	HESS J1825-137	null	0.56	1LHAASO J1825-1418	true	true
J1825-1418	null	KM2A	null	276.25	-14	0.43	0.81	0.1	68.9	7.26	0.98	3.53	0.18	null	null	null	null	1LHAASO J1825-1418	true	false
J1831-1007	u*	KM2A	null	277.81	-9.83	0.12	0.26	0.05	125.4	2.56	0.27	3.3	0.14	53.3	null	null	null	1LHAASO J1831-1007u	true	false
J1831-1007	u*	WCDA	null	277.75	-10.12	0.16	0.78	0.04	376.4	17.8	1.06	2.71	0.04	null	HESS J1831-098	null	0.25	1LHAASO J1831-1007u	true	true
J1831-1028	null	KM2A	null	277.84	-10.48	0.39	0.94	0.09	100	5.39	0.6	3.53	0.15	null	HESS J1833-105	null	0.55	1LHAASO J1831-1028	true	true
J1831-1028	null	WCDA	null	277.84	-10.48	0.39	0.94	0.09	100	0	7.77	3.53	0.15	null	null	null	null	1LHAASO J1831-1028	true	false
J1834-0831	null	WCDA	null	278.62	-8.53	0.22	0.4	0.07	96	5.99	1.09	3.08	0.13	null	HESS J1834-087	null	0.24	1LHAASO J1834-0831	true	true
J1834-0831	null	KM2A	null	278.44	-8.38	0.28	0.4	0.07	68.9	1.55	0.21	3.63	0.21	null	null	null	null	1LHAASO J1834-0831	true	false
J1837-0654	u	WCDA	*	279.39	-6.9	0.06	0.34	0.01	1,049.8	15.5	0.54	2.92	0.03	null	HESS J1837-069	null	0.05	1LHAASO J1837-0654u	true	true
J1837-0654	u	KM2A	null	279.31	-6.86	0.09	0.33	0.04	331.2	3.06	0.21	3.7	0.12	25	null	null	null	1LHAASO J1837-0654u	true	false
J1839-0548	u	KM2A	null	279.79	-5.81	0.06	0.22	0.02	364.8	3.03	0.2	3.24	0.09	127.7	LHAASO J1839-0545	null	0.17	1LHAASO J1839-0548u	true	true
J1839-0548	u	WCDA	*	279.85	-5.9	0.07	0.22	0.02	198.8	4.62	0.29	2.65	0.04	null	null	null	null	1LHAASO J1839-0548u	true	false
J1841-0519	null	KM2A	*	280.21	-5.23	0.37	0.62	0.12	82.8	2.1	0.25	3.85	0.2	null	null	null	null	1LHAASO J1841-0519	true	false
J1841-0519	null	WCDA	null	280.33	-5.33	0.09	0.6	0.03	519.8	15.2	0.84	2.88	0.04	null	HESS J1841-055	null	0.25	1LHAASO J1841-0519	true	true
J1843-0335	u	WCDA	null	281.01	-3.5	0.06	0.4	0.02	1,162.8	9.01	0.43	2.58	0.03	null	null	null	null	1LHAASO J1843-0335u	true	false
J1843-0335	u	KM2A	null	280.91	-3.6	0.04	0.36	0.01	1,892.2	6.19	0.2	3.44	0.06	295.8	HESS J1843-033	null	0.06	1LHAASO J1843-0335u	true	true
J1848-0001	u	KM2A	null	282.19	-0.02	0.04	0	0.09	655.4	1.64	0.1	2.75	0.07	316.8	IGR J18490-0000	null	0.08	1LHAASO J1848-0001u	false	true
J1848-0001	u	WCDA	null	282.19	-0.02	0.04	0	0.09	655.4	0	0.95	2.75	0.07	null	null	null	null	1LHAASO J1848-0001u	false	false
J1848-0153	u	WCDA	*	282.06	-1.89	0.1	0.51	0.03	571.2	7.05	0.4	2.65	0.04	null	HESS J1848-018	null	0.11	1LHAASO J1848-0153u	true	true
J1848-0153	u	KM2A	*	282.02	-1.78	0.11	0.56	0.03	542.9	3.29	0.17	3.69	0.1	36	null	null	null	1LHAASO J1848-0153u	true	false
J1850-0004	u*	WCDA	null	282.74	-0.07	0.08	0.46	0.02	800.9	5.3	0.32	2.49	0.04	null	HESS J1852-000	null	0.36	1LHAASO J1850-0004u	true	true
J1850-0004	u*	KM2A	null	282.89	-0.07	0.07	0.21	0.03	349.7	1.86	0.12	3.15	0.09	102	null	null	null	1LHAASO J1850-0004u	true	false
J1852+0050	u*	KM2A	*	283.1	0.84	0.26	0.85	0.06	275.6	3.22	0.22	3.64	0.12	22.1	2HWC J1852+013	*	0.55	1LHAASO J1852+0050u	true	true
J1852+0050	u*	WCDA	null	283.73	1.4	0.2	0.64	0.07	231	4.67	0.7	2.74	0.06	null	null	null	null	1LHAASO J1852+0050u	true	false
J1857+0203	u	WCDA	null	284.5	1.98	0.11	0.19	0.03	187.7	1.68	0.43	2.46	0.11	null	null	null	null	1LHAASO J1857+0203u	true	false
J1857+0203	u	KM2A	null	284.38	2.06	0.07	0.28	0.03	475.2	1.78	0.1	3.31	0.1	112.4	HESS J1858+020	null	0.21	1LHAASO J1857+0203u	true	true
J1857+0245	null	KM2A	null	284.37	2.75	0.11	0.24	0.04	361	0	0.32	2.93	0.07	null	null	null	null	1LHAASO J1857+0245	true	false
J1857+0245	null	WCDA	null	284.37	2.75	0.11	0.24	0.04	361	4.04	0.57	2.93	0.07	null	HESS J1857+026	null	0.11	1LHAASO J1857+0245	true	true
J1858+0330	null	KM2A	*	284.59	3.51	0.12	0.43	0.04	299.3	1.56	0.1	3.78	0.15	null	null	null	null	1LHAASO J1858+0330	true	false
J1858+0330	null	WCDA	null	284.79	3.7	0.34	0.52	0.08	114.5	2.84	0.63	2.63	0.1	null	null	null	null	1LHAASO J1858+0330	true	false
J1902+0648	null	WCDA	null	285.58	6.8	0.1	0	0.15	46.2	0.45	0.13	2.39	0.18	null	null	null	null	1LHAASO J1902+0648	false	false
J1902+0648	null	KM2A	null	285.58	6.8	0.1	0	0.15	46.2	0	0.06	2.39	0.18	null	null	null	null	1LHAASO J1902+0648	false	false
J1906+0712	null	WCDA	null	286.56	7.2	0.21	0.21	0.05	57.8	1.01	0.25	2.72	0.15	null	null	null	null	1LHAASO J1906+0712	true	false
J1906+0712	null	KM2A	null	286.56	7.2	0.21	0.21	0.05	57.8	0	0.19	2.72	0.15	null	null	null	null	1LHAASO J1906+0712	true	false
J1907+0826	null	WCDA	*	286.96	8.44	0.31	0.43	0.08	51.8	1.34	0.29	2.62	0.14	null	2HWC J1907+084	*	0.18	1LHAASO J1907+0826	true	true
J1907+0826	null	KM2A	null	286.96	8.44	0.31	0.43	0.08	51.8	0	0.29	2.62	0.14	null	null	null	null	1LHAASO J1907+0826	true	false

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1LHAASO Gamma-Ray Source Catalog

Part of the Astronomy Datasets collection on Hugging Face.

The first LHAASO (Large High Altitude Air Shower Observatory) catalog of gamma-ray sources detected at very-high-energy (VHE, >0.1 TeV) and ultra-high-energy (UHE, >100 TeV). Contains 180 catalog entries covering 90 unique sources observed with the KM2A and WCDA detectors.

LHAASO, located at 4410 m altitude in Sichuan, China, is the most sensitive UHE gamma-ray observatory in the Northern Hemisphere.

Dataset description

The 1LHAASO catalog presents sources detected during the first years of LHAASO operation. Each source may have separate entries for the KM2A (above ~25 TeV) and WCDA (1--25 TeV) detectors, with independent spectral measurements. The catalog includes positions, extensions, spectral parameters, and associations with known sources.

0 KM2A entries, 0 WCDA entries
119 extended sources, 65 with known associations

Schema

Column	Type	Description
`source_name`	string	1LHAASO source designation
`detector`	string	Detector: KM2A or WCDA
`ra_deg`	float64	Right ascension J2000 (degrees)
`dec_deg`	float64	Declination J2000 (degrees)
`glon_deg`	float64	Galactic longitude (degrees)
`glat_deg`	float64	Galactic latitude (degrees)
`pos_error_deg`	float64	Position uncertainty (degrees)
`extension_deg`	float64	Source extension (degrees, 0 = point-like)
`significance`	float64	Detection significance (sigma)
`spectral_index`	float64	Power-law spectral index
`spectral_index_error`	float64	Spectral index uncertainty
`pivot_energy_tev`	float64	Pivot energy (TeV)
`diff_flux`	float64	Differential flux at pivot energy
`diff_flux_error`	float64	Differential flux uncertainty
`energy_min_tev`	float64	Minimum energy of fit range (TeV)
`energy_max_tev`	float64	Maximum energy of fit range (TeV)
`ts_value`	float64	Test statistic value
`association`	string	Associated known source
`source_class`	string	Source classification
`is_extended`	bool	True if source has non-zero extension
`has_association`	bool	True if associated with a known source

Usage

from datasets import load_dataset

ds = load_dataset("juliensimon/lhaaso-gamma-ray-sources", split="train")
df = ds.to_pandas()

# Sources by detector
print(df["detector"].value_counts())

# UHE sources (KM2A entries above 100 TeV)
km2a = df[df["detector"] == "KM2A"]
print(f"KM2A sources: {len(km2a)}")

# Spectral index distribution
import matplotlib.pyplot as plt
df["spectral_index"].dropna().hist(bins=30)
plt.xlabel("Spectral Index")
plt.ylabel("Count")
plt.title("1LHAASO Spectral Index Distribution")
plt.show()

# Sky map in galactic coordinates
plt.scatter(df["glon_deg"], df["glat_deg"], c=df["significance"], cmap="hot", s=20)
plt.colorbar(label="Significance (sigma)")
plt.xlabel("Galactic Longitude (deg)")
plt.ylabel("Galactic Latitude (deg)")
plt.title("1LHAASO Sources in Galactic Coordinates")
plt.show()

Data source

Cao, Z., et al. (2024), The First LHAASO Catalog of Gamma-Ray Sources. The Astrophysical Journal Supplement Series, 271, 25. Via VizieR CDS (J/ApJS/271/25).

Pipeline

Source code: juliensimon/space-datasets

Citation

@dataset{lhaaso_gamma_ray_sources,
  author = {Simon, Julien},
  title = {1LHAASO Gamma-Ray Source Catalog},
  year = {2026},
  publisher = {Hugging Face},
  url = {https://huggingface.co/datasets/juliensimon/lhaaso-gamma-ray-sources},
  note = {Based on Cao et al. (2024) via VizieR CDS}
}

License

CC-BY-4.0

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