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 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
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

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
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 SDSS J11378+4111 11 37 50.21 +41 11 29.04 3.04 VERONCAT
SDSS J113750.20+411130 11 37 50.21 +41 11 30.12 3.05 SDSSQUASAR
QORG J113812.1+411352 11 38 12.10 +41 13 51.96 4.51 QORGCAT
SDSS J11382+4113 11 38 12.19 +41 13 51.96 4.51 VERONCAT
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
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
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 PGC 2175040 11 38 19.99 +41 03 33.84 6.89 PGC2003
7 PGC 2177175 11 38 38.59 +41 11 45.96 6.98 PGC2003
8 FIRST J113735.8+411609 11 37 35.90 +41 16 09.12 8.26 FIRST
9 PGC 2174388 11 38 09.19 +41 01 00.84 8.74 PGC2003
10 PPM 52541 11 37 47.54 +41 18 26.64 9.24 PPM
BD+42 2229 11 37 47.57 +41 18 26.64 9.24 ACRS
SAO 43833 11 37 47.52 +41 18 27.00 9.25 HIC
HIP 56722 11 37 47.59 +41 18 27.36 9.25 HIPPARCOS
SAO 43833 11 37 47.64 +41 18 28.08 9.26 SAO
QORG J113723.3+411541 11 37 23.30 +41 15 41.04 9.61 QORGCAT
11 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
12 FIRST J113723.2+411543 11 37 23.30 +41 15 43.92 9.64 FIRST
QORG J113725.5+411627 11 37 25.51 +41 16 27.12 9.80 QORGCAT
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
13 NVSS J113724+411622 11 37 24.50 +41 16 23.16 9.88 NVSS
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
14 SDSS J113733.08+410133 11 37 33.07 +41 01 33.24 9.91 SDSSQUASAR
SDSS J11375+4101 11 37 33.10 +41 01 32.88 9.92 VERONCAT
15 SAO 43828 11 37 13.54 +41 06 15.48 9.96 SAO
PPM 52536 11 37 13.49 +41 06 14.40 9.97 PPM
BD+41 2212 11 37 13.46 +41 06 14.40 9.98 ACRS
HIP 56670 11 37 13.46 +41 06 14.40 9.98 HIPPARCOS
SAO 43828 11 37 13.44 +41 06 14.40 9.98 HIC
16 FIRST J113747.4+410000 11 37 47.50 +41 00 01.08 10.12 FIRST
17 BD+41 2219 11 38 57.10 +41 08 34.44 10.21 ACRS
NSV 5279 11 38 57.10 +41 08 34.08 10.21 GCVSNSVARS
HD 101207 11 38 57.14 +41 08 34.44 10.22 HIC
PPM 52557 11 38 57.19 +41 08 34.80 10.23 PPM
SAO 43844 11 38 57.22 +41 08 35.52 10.23 SAO
HIP 56827 11 38 57.29 +41 08 35.16 10.24 HIPPARCOS
[ZEH2003] RX J1138.9+4 11 38 57.31 +41 08 35.16 10.25 HRASSOPTID
18 SAO 43845 11 38 57.91 +41 10 46.56 10.35 SAO
BD+42 2231 11 38 57.91 +41 10 48.36 10.36 ACRS
PPM 52558 11 38 57.96 +41 10 47.64 10.37 PPM
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
19 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
20 WDS J11390+4109 AC 11 39 00.00 +41 08 60.00 10.72 WDS
WDS J11390+4109 AB 11 39 00.00 +41 08 60.00 10.72 WDS
21 NVSS J113900+411011 11 39 00.19 +41 10 12.00 10.74 NVSS
22 SAO 43842 11 38 52.51 +41 04 11.64 10.79 SAO
BD+41 2217 11 38 52.39 +41 04 09.84 10.79 ACRS
PPM 52555 11 38 52.44 +41 04 10.20 10.79 PPM
23 SDSS J11370+4109 11 37 03.19 +41 09 23.04 11.30 VERONCAT
SDSS J113703.18+410923 11 37 03.19 +41 09 23.76 11.30 SDSSQUASAR
QORG J113838.4+412001 11 38 38.40 +41 20 00.96 12.27 QORGCAT
FIRST J113838.5+412001 11 38 38.50 +41 20 00.96 12.28 FIRST
24 NVSS J113838+412008 11 38 38.11 +41 20 08.16 12.35 NVSS
25 FIRST J113901.1+411742 11 39 01.20 +41 17 43.08 13.54 FIRST
26 FIRST J113715.8+405923 11 37 15.91 +40 59 22.92 13.62 FIRST
27 SDSS J11370+4119 11 37 00.19 +41 19 54.12 15.64 VERONCAT
SDSS J113700.20+411954 11 37 00.19 +41 19 54.12 15.64 SDSSQUASAR

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