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.


Caution: For completeness, sources are listed if the "detection" exceeds 3 sigma. The significances and images are shown so you can make more stringent significance cuts, if desired.

3FGL J1944.1+3919

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1944.1+3919 Swift-XRT detections in the field for 3FGL J1944.1+3919

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 43 17.33 +39 26 53.37 6.31 (4.0 ± 1.3) x 10-3 15 2.846 3.019

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1944.1+3919 Swift-XRT image with known radio, optical and UV sources for 3FGL J1944.1+3919


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 1942+3912 19 44 08.30 +39 19 58.08 0.54 NORTH6CM
GB6 J1944+3920 19 44 07.99 +39 20 17.16 0.86 GB6
2 NVSS J194407+392026 19 44 07.20 +39 20 26.16 1.06 NVSS
WN 1942.3+3913 19 44 07.51 +39 20 35.16 1.18 WENSS
3 NVSS J194406+392206 19 44 06.60 +39 22 05.88 2.68 NVSS
4 NVSS J194429+391617 19 44 29.30 +39 16 18.12 4.99 NVSS
WN 1941.8+3910 19 43 33.41 +39 18 12.96 7.08 WENSS
5 NVSS J194333+391807 19 43 33.50 +39 18 06.84 7.09 NVSS
6 NVSS J194454+391339 19 44 54.70 +39 13 40.08 10.51 NVSS
7 NVSS J194311+391639 19 43 11.21 +39 16 39.00 11.62 NVSS
TGSSADR J194312.3+392359 19 43 12.31 +39 23 60.00 11.93 GMRTAS150M
8 NVSS J194312+392400 19 43 12.19 +39 24 01.08 11.96 NVSS
WN 1941.4+3916 19 43 12.10 +39 24 02.88 12.00 WENSS

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