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.

3FGL J0746.4-0225

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J0746.4-0225 Swift-XRT detections in the field for 3FGL J0746.4-0225

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 46 26.98 -02 25 51.81 4.10 (3.5 ± 0.3) x 10-2 133 11.040 10.960
2 07 45 54.84 -02 24 32.13 6.12 (5.4 ± 1.3) x 10-3 20 3.818 4.213
3 07 45 37.53 -02 16 33.82 5.53 (3.5 ± 1.2) x 10-3 14 3.148 3.035

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 45 15.87 -02 19 37.05 6.41 (2.2 ± 0.8) x 10-3 9 2.570 2.661
2 07 45 39.56 -02 28 13.03 6.31 (2.4 ± 0.9) x 10-3 10 2.609 2.598

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0746.4-0225 Swift-XRT image with known radio, optical and UV sources for 3FGL J0746.4-0225

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J074626.2-022638 07 46 26.21 -02 26 38.40 1.43 ROSAT
2RXS J074626.0-022642 07 46 26.30 -02 26 42.36 1.51 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J074627-022549 07 46 27.10 -02 25 50.16 0.61 NVSS
2 NVSS J074608-022503 07 46 08.81 -02 25 04.08 4.91 NVSS
TGSSADR J074621.4-022011 07 46 21.50 -02 20 11.04 5.42 GMRTAS150M
GLEAM J074621-022008 07 46 21.91 -02 20 08.88 5.43 GLEAMEGCAT
3 NVSS J074621-022010 07 46 21.41 -02 20 09.96 5.44 NVSS
[PME2013] J0746-0220 07 46 21.41 -02 20 09.96 5.45 AT2FGLUS
[SPT2015] ATCA J0746-0220 07 46 21.41 -02 20 09.96 5.45 FER2FUSRID
4 NVSS J074621-023221 07 46 21.91 -02 32 21.12 7.21 NVSS
GLEAM J074622-023224 07 46 22.10 -02 32 25.08 7.26 GLEAMEGCAT
5 NVSS J074558-022600 07 45 58.51 -02 25 59.88 7.51 NVSS
TGSSADR J074707.1-022649 07 47 07.20 -02 26 49.92 9.79 GMRTAS150M
6 NVSS J074707-022649 07 47 07.20 -02 26 48.84 9.79 NVSS
7 NVSS J074550-022320 07 45 50.11 -02 23 20.04 9.79 NVSS
GLEAM J074707-022639 07 47 07.61 -02 26 39.84 9.87 GLEAMEGCAT
8 NVSS J074558-023153 07 45 58.01 -02 31 54.12 10.05 NVSS
9 NVSS J074703-021721 07 47 04.01 -02 17 21.84 11.93 NVSS
10 NVSS J074542-021907 07 45 42.91 -02 19 06.96 12.97 NVSS

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