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.

2FGL J0737.5-8246

Field

Detected Excesses
Swift-XRT image of the field for 2FGL J0737.5-8246 Swift-XRT detections in the field for 2FGL J0737.5-8246

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 37 05.04 -82 48 42.25 3.97 (2.2 ± 0.2) x 10-2 162 11.440 11.480
2 07 38 20.16 -82 50 42.27 4.40 (1.13 ± 0.14) x 10-2 77 7.922 7.970
3 07 32 20.81 -82 48 42.05 5.64 (3.4 ± 0.8) x 10-3 25 4.242 4.383
4 07 37 12.46 -82 55 08.93 4.78 (3.9 ± 0.9) x 10-3 35 4.832 4.280
5 07 40 05.02 -82 34 54.76 5.35 (3.5 ± 0.8) x 10-3 23 4.200 4.224

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 07 31 16.62 -82 50 51.64 6.65 (1.6 ± 0.5) x 10-3 11 2.593 2.912
2 07 32 13.13 -82 36 59.48 6.52 (1.3 ± 0.5) x 10-3 14 2.582 2.674

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 2FGL J0737.5-8246 Swift-XRT image with known radio, optical and UV sources for 2FGL J0737.5-8246

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J073707.5-824841 07 37 07.51 -82 48 41.76 2.38 XMM-NEWTON
XMMSL2 J073707.5-824841 07 37 07.51 -82 48 41.76 2.38 XMM-NEWTON
2 1RXS J073928.7-824044 07 39 28.70 -82 40 44.40 6.79 ROSAT
3 2RXS J074342.5-824246 07 43 42.50 -82 42 46.80 12.25 ROSAT
2RXS J074342.5-824246 07 43 42.50 -82 42 46.80 12.25 ROSAT
1RXS J074344.6-824248 07 43 44.59 -82 42 48.60 12.30 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J073706-824836 07 37 06.79 -82 48 37.08 2.31 SUMSS
2 [PME2013] J0737-8244 07 37 54.31 -82 44 12.84 2.33 AT2FGLUS
[SPT2015] ATCA J0737-8244 07 37 54.31 -82 44 12.84 2.33 FER2FUSRID
[PME2013] J0737-8248 07 37 06.60 -82 48 41.04 2.37 AT2FGLUS
[SPT2015] ATCA J0737-8248 07 37 06.60 -82 48 41.04 2.37 FER2FUSRID
3 SUMSS J074106-824843 07 41 06.31 -82 48 43.92 7.09 SUMSS
4 SUMSS J074112-825238 07 41 12.60 -82 52 37.92 9.25 SUMSS
5 PMN J0741-8252 07 41 48.91 -82 52 04.08 9.79 PMN
SUMSS J074159-825209 07 41 59.71 -82 52 09.12 10.11 SUMSS
GLEAM J074202-825209 07 42 02.50 -82 52 09.84 10.19 GLEAMEGCAT
6 SUMSS J073359-823836 07 33 59.40 -82 38 35.88 10.35 SUMSS
7 SUMSS J074103-825531 07 41 03.60 -82 55 32.16 11.21 SUMSS

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