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 J2158.7+6547

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J2158.7+6547 Swift-XRT detections in the field for 1FGL J2158.7+6547


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 59 42.84 +65 46 17.03 7.09 (2.8 ± 1.0) x 10-3 13 2.969 2.837
2 21 58 59.75 +65 45 00.34 7.48 (2.6 ± 1.0) x 10-3 11 2.732 2.666
3 21 58 10.85 +65 43 40.33 8.27 (2.2 ± 0.8) x 10-3 9 2.531 2.659
4 21 57 35.77 +65 39 42.25 7.97 (1.9 ± 0.8) x 10-3 8 2.367 2.405
5 21 58 46.95 +65 53 35.30 7.71 (1.6 ± 0.8) x 10-3 8 2.289 2.052

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J2158.7+6547 Swift-XRT image with known radio, optical and UV sources for 1FGL J2158.7+6547

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J215946.7+655826 21 59 46.70 +65 58 26.40 12.67 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
CGPS J215916+654915 21 59 16.70 +65 49 14.88 3.85 CGPSNGPCAT
1 NVSS J215916+654920 21 59 16.80 +65 49 19.92 3.89 NVSS
CGPS J215816+655134 21 58 16.39 +65 51 33.84 4.83 CGPSNGPCAT
TGSSADR J215816.4+655134 21 58 16.49 +65 51 34.92 4.83 GMRTAS150M
2 NVSS J215816+655134 21 58 16.30 +65 51 33.84 4.83 NVSS
WN 2156.9+6537 21 58 16.20 +65 51 34.92 4.85 WENSS
3 CGPS J215820+654204 21 58 20.81 +65 42 05.04 5.95 CGPSNGPCAT
4 NVSS J215929+654312 21 59 29.30 +65 43 12.00 6.47 NVSS
CGPS J215833+653931 21 58 33.89 +65 39 32.04 8.11 CGPSNGPCAT
5 NVSS J215833+653929 21 58 33.41 +65 39 29.88 8.15 NVSS
6 CGPS J215719+654955 21 57 19.99 +65 49 55.92 8.81 CGPSNGPCAT
CGPS J220007+654224 22 00 07.30 +65 42 24.84 10.09 CGPSNGPCAT
7 NVSS J220007+654224 22 00 07.61 +65 42 24.12 10.12 NVSS
WN 2158.8+6527 22 00 08.40 +65 42 21.96 10.21 WENSS
8 NVSS J215753+655652 21 57 52.99 +65 56 53.16 10.60 NVSS
CGPS J215755+655706 21 57 55.51 +65 57 06.84 10.69 CGPSNGPCAT
9 NVSS J215732+655915 21 57 33.00 +65 59 15.00 13.69 NVSS
CGPS J215732+655914 21 57 32.50 +65 59 13.92 13.70 CGPSNGPCAT
TGSSADR J215732.6+655915 21 57 32.59 +65 59 15.00 13.71 GMRTAS150M
WN 2156.2+6544 21 57 32.50 +65 59 16.08 13.72 WENSS
CGPS J215708+653728 21 57 08.11 +65 37 27.84 14.05 CGPSNGPCAT
10 NVSS J215706+653719 21 57 06.31 +65 37 18.84 14.28 NVSS

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