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.

1FGL J2116.8+3729

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J2116.8+3729 Swift-XRT detections in the field for 1FGL J2116.8+3729


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 17 04.85 +37 28 04.56 5.53 (1.6 ± 0.7) x 10-3 23 2.551 2.471
2 21 16 24.35 +37 32 29.22 6.93 (1.5 ± 0.6) x 10-3 9 2.404 2.457
3 21 17 17.70 +37 28 37.49 5.53 (9 ± 5) x 10-4 20 2.689 1.837

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J2116.8+3729 Swift-XRT image with known radio, optical and UV sources for 1FGL J2116.8+3729


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 J211735+372455 21 17 35.21 +37 24 55.08 10.01 NVSS
2 NVSS J211642+373949 21 16 42.41 +37 39 50.04 10.34 NVSS
WN 2114.4+3726 21 16 27.91 +37 39 32.04 10.89 WENSS
3 NVSS J211627+373930 21 16 27.41 +37 39 30.96 10.92 NVSS
4 NVSS J211749+372724 21 17 49.80 +37 27 24.12 11.93 NVSS

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