Swift-XRT Survey of Fermi Unassociated Sources

These results are part of the Swift program to follow-up Fermi unassociated sources in an attempt to find X-ray counterparts to the unidentified gamma-ray sources. As new observations are performed, these pages will be updated in nearly real time. Please use these results as a guide and proceed with caution when using them in a publication since they are the result of an automated analysis.

When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949 for a description of many of the analysis techniques used to reduce these data (note: a more detailed paper describing the complete data set and analysis is forthcoming). Please contact Abe Falcone and Michael Stroh at unassociated@swift.psu.edu if you have any questions about the program or the analysis, or to simply to let us know that you've made use of these data.

1FGL J2139.9+4715

Field

Detected Excesses

Swift-XRT detections in the field for 1FGL J2139.9+4715

No detected excesses found.

Rejected Excesses (Due to Overlaps or SNR(Sosta) < 3.0)

#	R.A. (J2000)	Dec. (J2000)	Pos. Error (")	Rate (cts/s)	Counts	SNR (Detect)	SNR (Sosta)
1	21 39 35.26	+47 09 47.09	7.71	(2.2 ± 1.0) x 10^-3	8	2.370	2.154

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known radio, optical and UV sources for 1FGL J2139.9+4715

Known X-Ray and Gamma Ray Sources

#	Source Name	R.A. (J2000)	Dec. (J2000)	Offset (')	Observatory/Database Table
1	CXOGSG J213955.9+471613	21 39 55.97	+47 16 13.08	0.76	CHANDRA
2	CXOGSG J213954.8+471714	21 39 54.84	+47 17 14.28	1.80	CHANDRA
3	CXOGSG J213954.1+471330	21 39 54.14	+47 13 30.72	2.02	CHANDRA
4	CXOGSG J214008.2+471645	21 40 08.23	+47 16 45.48	2.31	CHANDRA
5	CXOGSG J214000.2+471229	21 40 00.22	+47 12 29.52	3.04	CHANDRA
6	CXOGSG J213936.6+471618	21 39 36.67	+47 16 18.48	3.53	CHANDRA
7	CXOGSG J214015.7+471728	21 40 15.72	+47 17 28.68	3.77	CHANDRA
8	CXOGSG J213935.4+471424	21 39 35.47	+47 14 24.72	3.79	CHANDRA
9	CXOGSG J213958.5+471921	21 39 58.58	+47 19 21.36	3.89	CHANDRA
10	CXOGSG J213942.5+471215	21 39 42.50	+47 12 15.84	4.03	CHANDRA
11	CXOGSG J213937.0+471304	21 39 37.10	+47 13 04.80	4.14	CHANDRA
12	CXOGSG J213933.7+471809	21 39 33.70	+47 18 09.00	4.76	CHANDRA
13	CXOGSG J213935.7+471217	21 39 35.71	+47 12 17.64	4.80	CHANDRA
14	CXOGSG J214025.1+471609	21 40 25.13	+47 16 09.12	4.83	CHANDRA
15	CXOGSG J214016.5+471921	21 40 16.51	+47 19 21.36	5.11	CHANDRA
16	CXOGSG J214025.7+471347	21 40 25.75	+47 13 47.64	5.18	CHANDRA
17	CXOGSG J213925.7+471620	21 39 25.78	+47 16 20.64	5.35	CHANDRA
18	CXOGSG J214025.5+471819	21 40 25.54	+47 18 19.44	5.63	CHANDRA
19	CXOGSG J213921.1+471403	21 39 21.14	+47 14 03.48	6.23	CHANDRA

Known Radio, Optical and UV Sources

#	Source Name	R.A. (J2000)	Dec. (J2000)	Offset (')	Database Table
1	PSR J2139+4716	21 39 55.90	+47 16 13.08	0.76	ATNFPULSAR
2	NVSS J213939+471331	21 39 40.01	+47 13 32.16	3.47	NVSS
	[SPT2015] VLA J2139+4713	21 39 39.19	+47 13 24.96	3.64	FER2FUSRID
3	NVSS J214028+471312	21 40 28.90	+47 13 13.08	5.89	NVSS
4	NVSS J214030+471115	21 40 30.60	+47 11 15.00	7.10	NVSS
	WN 2138.6+4657	21 40 30.79	+47 11 17.16	7.12	WENSS
	TGSSADR J214030.8+471111	21 40 30.79	+47 11 12.12	7.17	GMRTAS150M
5	NVSS J213958+472436	21 39 58.61	+47 24 36.00	9.13	NVSS
6	NVSS J213931+470420	21 39 31.49	+47 04 21.00	11.94	NVSS
7	NVSS J213941+472723	21 39 41.81	+47 27 24.12	12.19	NVSS
	TGSSADR J213846.7+471211	21 38 46.70	+47 12 11.16	12.36	GMRTAS150M
	WN 2136.9+4658	21 38 46.61	+47 12 01.08	12.43	WENSS
8	NVSS J213846+471202	21 38 46.49	+47 12 02.88	12.43	NVSS
	TGSSADR J213858.7+472549	21 38 58.70	+47 25 49.08	14.29	GMRTAS150M
9	NVSS J213858+472550	21 38 58.70	+47 25 50.16	14.31	NVSS
	WN 2137.1+4712	21 38 58.10	+47 25 49.08	14.36	WENSS