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 J2118.3+5751

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J2118.3+5751 Swift-XRT detections in the field for 3FGL J2118.3+5751


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 18 32.68 +57 42 58.99 7.27 (2.9 ± 1.1) x 10-3 10 2.653 2.688
2 21 16 58.69 +57 57 16.39 5.70 (2.1 ± 1.0) x 10-3 12 2.460 2.055

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2118.3+5751 Swift-XRT image with known radio, optical and UV sources for 3FGL J2118.3+5751


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 2116+5739 21 18 15.10 +57 52 40.08 1.21 NORTH6CM
2116+5739 21 18 15.10 +57 52 40.08 1.21 NORTH20CM
GB6 J2118+5752 21 18 15.00 +57 52 48.00 1.32 GB6
2 NVSS J211810+575233 21 18 10.61 +57 52 32.88 1.61 NVSS
VLSSr J211758.0+574640 21 17 58.10 +57 46 40.08 5.94 VLSSR
TGSSADR J211756.4+574639 21 17 56.50 +57 46 40.08 6.06 GMRTAS150M
WN 2116.5+5733 21 17 56.50 +57 46 39.00 6.06 WENSS
TXS 2116+575 21 17 56.71 +57 46 37.92 6.06 TEXAS
3 NVSS J211756+574639 21 17 56.40 +57 46 39.00 6.07 NVSS
2116+5733 21 17 57.10 +57 46 27.84 6.19 NORTH6CM
GB6 J2117+5746 21 17 56.90 +57 46 23.88 6.25 GB6
TGSSADR J211752.9+575801 21 17 52.99 +57 58 01.92 7.30 GMRTAS150M
4 NVSS J211753+575812 21 17 53.11 +57 58 12.00 7.45 NVSS
5 TXS 2116+577 21 17 35.11 +57 56 29.04 7.73 TEXAS
TGSSADR J211741.4+575725 21 17 41.40 +57 57 24.84 7.74 GMRTAS150M
WN 2116.2+5744B 21 17 41.50 +57 57 25.92 7.75 WENSS
6 NVSS J211741+575726 21 17 41.40 +57 57 25.92 7.75 NVSS
WN 2116.2+5744 21 17 40.80 +57 57 32.04 7.87 WENSS
GB6 J2117+5757 21 17 39.91 +57 57 29.16 7.92 GB6
2116+5744 21 17 38.81 +57 57 29.16 8.03 NORTH6CM
2116+5744 21 17 38.81 +57 57 29.16 8.03 NORTH20CM
WN 2116.2+5744A 21 17 33.31 +57 58 08.04 9.00 WENSS
TGSSADR J211732.8+575807 21 17 32.81 +57 58 06.96 9.04 GMRTAS150M
7 NVSS J211732+575807 21 17 32.71 +57 58 08.04 9.06 NVSS
8 2117+5749 21 18 25.20 +58 02 27.96 10.73 NORTH6CM
GB6 J2118+5802 21 18 23.40 +58 02 53.88 11.15 GB6
9 NVSS J211823+580315 21 18 23.30 +58 03 15.12 11.50 NVSS
10 NVSS J211933+580019 21 19 33.10 +58 00 19.08 12.83 NVSS
11 NVSS J211705+580256 21 17 05.40 +58 02 56.04 15.03 NVSS

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