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 J1903.9+0052

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1903.9+0052 Swift-XRT detections in the field for 3FGL J1903.9+0052

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 04 08.03 +00 50 16.50 6.04 (8 ± 2) x 10-3 22 4.185 3.905

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 19 03 32.11 +00 54 18.39 6.52 (2.7 ± 1.2) x 10-3 12 2.710 2.355

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1903.9+0052 Swift-XRT image with known radio, optical and UV sources for 3FGL J1903.9+0052


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 NVSS J190408+005013 19 04 08.40 +00 50 12.84 2.96 NVSS
2 NVSS J190414+010252 19 04 14.59 +01 02 52.08 11.34 NVSS
3 NVSS J190425+004058 19 04 25.30 +00 40 59.16 12.92 NVSS
4 NVSS J190316+005944 19 03 16.20 +00 59 44.16 13.21 NVSS
5 NVSS J190318+004217 19 03 18.31 +00 42 18.00 14.28 NVSS

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