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 J1138.0+4109

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J1138.0+4109 Swift-XRT detections in the field for 1FGL J1138.0+4109

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 11 38 57.00 +41 08 34.66 3.97 (6.0 ± 0.5) x 10-2 165 13.030 12.330
2 11 36 57.63 +41 13 19.51 4.44 (1.8 ± 0.2) x 10-2 70 8.361 7.859
3 11 37 25.17 +41 16 31.56 6.78 (4.5 ± 1.2) x 10-3 16 3.735 3.848
4 11 38 58.31 +41 10 50.70 6.21 (3.5 ± 1.1) x 10-3 15 3.331 3.279

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 11 38 10.56 +41 04 44.97 7.09 (2.8 ± 1.0) x 10-3 11 2.721 2.840
2 11 37 02.99 +41 09 24.50 6.52 (2.2 ± 0.9) x 10-3 10 2.850 2.536
3 11 37 41.49 +41 17 02.03 6.78 (2.2 ± 0.9) x 10-3 11 2.520 2.531

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J1138.0+4109 Swift-XRT image with known radio, optical and UV sources for 1FGL J1138.0+4109

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 [MML2015] 5BZB J1138+4113 11 38 12.14 +41 13 52.68 4.52 null
1RXS J113857.0+410840 11 38 57.00 +41 08 40.56 10.18 ROSAT
1RXS J113857.0+410840 11 38 57.00 +41 08 39.84 10.18 ROSAT
HD 101207 11 38 57.00 +41 08 39.84 10.18 ROSAT
1RXS J113857.0+410840 11 38 57.00 +41 08 39.84 10.18 ROSAT
2RXS J113857.0+410841 11 38 57.31 +41 08 41.28 10.18 ROSAT
2RXS J113857.0+410841 11 38 57.31 +41 08 41.28 10.18 ROSAT
2 XMMSL2 J113858.2+410846 11 38 58.49 +41 08 46.32 10.37 XMM-NEWTON
XMMSL2 J113858.2+410846 11 38 58.49 +41 08 46.32 10.37 XMM-NEWTON
3 SACSSP J113726.6+405759 11 37 26.47 +40 57 59.04 13.59 SWIFT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
TGSSADR J113808.1+411013 11 38 08.11 +41 10 13.08 1.07 GMRTAS150M
1 NVSS J113808+411013 11 38 08.30 +41 10 13.08 1.10 NVSS
FIRST J113808.3+411013 11 38 08.30 +41 10 14.16 1.11 FIRST
FIRST J113751.6+410920 11 37 51.70 +41 09 20.16 2.19 FIRST
2 NVSS J113751+410916 11 37 51.60 +41 09 15.84 2.22 NVSS
3 FIRST J113748.6+410622 11 37 48.60 +41 06 21.96 4.30 FIRST
[MML2015] 5BZB J1138+4113 11 38 12.10 +41 13 53.04 4.52 ROMABZCAT
FIRST J113812.1+411353 11 38 12.19 +41 13 53.04 4.53 FIRST
4 NVSS J113812+411353 11 38 12.19 +41 13 54.12 4.54 NVSS
TGSSADR J113812.2+411353 11 38 12.19 +41 13 54.12 4.54 GMRTAS150M
WN 1135.5+4130 11 38 12.10 +41 13 54.84 4.55 WENSS
7C 113505.7+413012 11 37 45.50 +41 13 35.04 5.13 UC7C151MHZ
WN 1135.0+4130 11 37 44.81 +41 13 35.04 5.22 WENSS
FIRST J113742.9+411318 11 37 43.01 +41 13 18.84 5.26 FIRST
FIRST J113743.7+411328 11 37 43.80 +41 13 27.84 5.26 FIRST
TGSSADR J113744.5+411337 11 37 44.59 +41 13 37.92 5.28 GMRTAS150M
FIRST J113745.0+411343 11 37 45.10 +41 13 42.96 5.28 FIRST
5 NVSS J113744+411339 11 37 44.71 +41 13 40.08 5.29 NVSS
6 FIRST J113735.8+411609 11 37 35.90 +41 16 09.12 8.26 FIRST
7 NVSS J113729+411653 11 37 29.40 +41 16 54.12 9.61 NVSS
FIRST J113728.6+411646 11 37 28.70 +41 16 46.92 9.62 FIRST
TGSSADR J113728.3+411643 11 37 28.30 +41 16 42.96 9.62 GMRTAS150M
8 FIRST J113723.2+411543 11 37 23.30 +41 15 43.92 9.64 FIRST
WN 1134.7+4132 11 37 24.60 +41 16 23.16 9.87 WENSS
7C 113445.0+413303 11 37 24.91 +41 16 26.04 9.88 UC7C151MHZ
9 NVSS J113724+411622 11 37 24.50 +41 16 23.16 9.88 NVSS
TGSSADR J113724.3+411621 11 37 24.41 +41 16 22.08 9.89 GMRTAS150M
FIRST J113724.3+411621 11 37 24.41 +41 16 22.08 9.90 FIRST
GB6 J1137+4116 11 37 23.50 +41 16 10.92 9.90 GB6
VLSSr J113724.1+411622 11 37 24.19 +41 16 22.08 9.93 VLSSR
10 FIRST J113747.4+410000 11 37 47.50 +41 00 01.08 10.12 FIRST
FIRST J113843.2+411707 11 38 43.20 +41 17 08.16 10.59 FIRST
FIRST J113859.4+411017 11 38 59.40 +41 10 18.12 10.60 FIRST
TGSSADR J113859.4+411012 11 38 59.50 +41 10 13.08 10.61 GMRTAS150M
11 NVSS J113843+411708 11 38 43.39 +41 17 08.16 10.61 NVSS
FIRST J113859.8+411011 11 38 59.81 +41 10 12.00 10.67 FIRST
WN 1136.3+4126 11 38 59.90 +41 10 17.04 10.69 WENSS
12 NVSS J113900+411011 11 39 00.19 +41 10 12.00 10.74 NVSS
FIRST J113838.5+412001 11 38 38.50 +41 20 00.96 12.28 FIRST
13 NVSS J113838+412008 11 38 38.11 +41 20 08.16 12.35 NVSS
14 FIRST J113901.1+411742 11 39 01.20 +41 17 43.08 13.54 FIRST
15 FIRST J113715.8+405923 11 37 15.91 +40 59 22.92 13.62 FIRST

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