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 J0520.2+2632

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J0520.2+2632 Swift-XRT detections in the field for 1FGL J0520.2+2632

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 05 20 06.23 +26 25 00.64 5.70 (1.2 ± 0.3) x 10-2 23 4.573 4.320
2 05 20 23.90 +26 26 19.22 7.27 (7 ± 2) x 10-3 13 3.329 3.204
3 05 20 33.03 +26 27 03.87 7.48 (6 ± 2) x 10-3 11 3.096 3.119

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0520.2+2632 Swift-XRT image with known radio, optical and UV sources for 1FGL J0520.2+2632

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2EG J0520+2626 05 20 12.00 +26 25 59.88 6.17 MGGAMMACAT
2 2RXS J052023.3+262631 05 20 23.35 +26 26 31.56 6.37 ROSAT
3 1RXS J052033.0+262703 05 20 33.00 +26 27 03.60 6.90 ROSAT
2RXS J052033.0+262703 05 20 33.29 +26 27 03.24 6.90 ROSAT
4 1RXS J052047.8+262322 05 20 47.81 +26 23 21.84 11.85 ROSAT
2RXS J052047.6+262318 05 20 47.71 +26 23 18.24 11.88 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J052027+262907 05 20 27.79 +26 29 07.08 4.56 NVSS
TGSSADR J052027.9+262907 05 20 27.91 +26 29 07.08 4.58 GMRTAS150M
2 NVSS J052034+263007 05 20 34.10 +26 30 07.92 5.01 NVSS
3 NVSS J052021+263813 05 20 21.19 +26 38 12.84 5.84 NVSS
TGSSADR J052021.0+263815 05 20 21.10 +26 38 16.08 5.87 GMRTAS150M
4 NVSS J052032+262654 05 20 32.90 +26 26 53.88 7.01 NVSS
TGSSADR J052033.0+262653 05 20 33.10 +26 26 53.16 7.04 GMRTAS150M
5 NVSS J051936+263137 05 19 36.19 +26 31 37.92 8.61 NVSS
6 NVSS J052003+264428 05 20 03.50 +26 44 29.04 12.16 NVSS
TGSSADR J052003.5+264429 05 20 03.60 +26 44 29.04 12.16 GMRTAS150M
7 NVSS J052043+262139 05 20 43.61 +26 21 38.88 12.72 NVSS
TGSSADR J052058.1+262346 05 20 58.20 +26 23 47.04 13.15 GMRTAS150M
8 NVSS J052058+262343 05 20 58.20 +26 23 44.16 13.18 NVSS
TGSSADR J051928.8+262206 05 19 28.80 +26 22 05.88 14.63 GMRTAS150M
9 NVSS J051928+262206 05 19 28.80 +26 22 05.88 14.63 NVSS

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