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.

2FGL J2117.5+3730

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J2117.5+3730 Swift-XRT detections in the field for 2FGL J2117.5+3730


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 17.75 +37 28 35.81 5.31 (1.3 ± 0.5) x 10-3 22 3.195 2.447
2 21 17 05.61 +37 27 56.47 5.24 (1.3 ± 0.5) x 10-3 19 2.888 2.318

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J2117.5+3730 Swift-XRT image with known radio, optical and UV sources for 2FGL J2117.5+3730

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J211807.6+372344 21 18 07.61 +37 23 44.16 9.99 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J211749+372724 21 17 49.80 +37 27 24.12 4.89 NVSS
2 NVSS J211755+372707 21 17 55.10 +37 27 06.84 5.86 NVSS
3 NVSS J211735+372455 21 17 35.21 +37 24 55.08 5.98 NVSS
4 NVSS J211800+373427 21 18 00.31 +37 34 27.12 6.59 NVSS
WN 2116.0+3721 21 18 01.30 +37 34 28.92 6.78 WENSS
5 NVSS J211808+373413 21 18 08.11 +37 34 14.16 7.83 NVSS
6 NVSS J211810+374047 21 18 10.61 +37 40 46.92 12.48 NVSS
7 NVSS J211642+373949 21 16 42.41 +37 39 50.04 13.35 NVSS
8 NVSS J211819+372050 21 18 19.01 +37 20 51.00 13.65 NVSS

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