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 J0746.0-0222

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J0746.0-0222 Swift-XRT detections in the field for 2FGL J0746.0-0222

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 46 27.03 -02 25 51.16 4.10 (3.3 ± 0.3) x 10-2 124 10.770 10.590
2 07 45 54.84 -02 24 32.09 6.12 (4.6 ± 1.3) x 10-3 20 3.857 3.623

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 37.78 -02 16 33.69 5.59 (3.4 ± 1.2) x 10-3 16 3.071 2.930
2 07 45 15.92 -02 19 36.82 6.41 (2.3 ± 0.9) x 10-3 10 2.491 2.517
3 07 45 39.54 -02 28 12.75 6.31 (2.4 ± 1.0) x 10-3 10 2.622 2.509
4 07 45 35.94 -02 26 54.91 6.78 (2.0 ± 0.8) x 10-3 11 2.504 2.357

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J0746.0-0222 Swift-XRT image with known radio, optical and UV sources for 2FGL J0746.0-0222

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 6.87 ROSAT
2RXS J074626.0-022642 07 46 26.30 -02 26 42.36 6.88 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J074608-022503 07 46 08.81 -02 25 04.08 3.05 NVSS
2 NVSS J074550-022320 07 45 50.11 -02 23 20.04 4.03 NVSS
3 NVSS J074558-022600 07 45 58.51 -02 25 59.88 4.24 NVSS
4 NVSS J074621-022010 07 46 21.41 -02 20 09.96 4.45 NVSS
[PME2013] J0746-0220 07 46 21.41 -02 20 09.96 4.45 AT2FGLUS
TGSSADR J074621.4-022011 07 46 21.50 -02 20 11.04 4.45 GMRTAS150M
[SPT2015] ATCA J0746-0220 07 46 21.41 -02 20 09.96 4.45 FER2FUSRID
GLEAM J074621-022008 07 46 21.91 -02 20 08.88 4.57 GLEAMEGCAT
5 NVSS J074542-021907 07 45 42.91 -02 19 06.96 6.40 NVSS
6 NVSS J074627-022549 07 46 27.10 -02 25 50.16 6.55 NVSS
7 NVSS J074558-023153 07 45 58.01 -02 31 54.12 9.94 NVSS
8 NVSS J074553-021152 07 45 53.71 -02 11 53.16 10.67 NVSS
9 NVSS J074621-023221 07 46 21.91 -02 32 21.12 11.02 NVSS
GLEAM J074622-023224 07 46 22.10 -02 32 25.08 11.08 GLEAMEGCAT

Penn State University Goddard Space Flight Center Swift