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 J1628.1-5740

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J1628.1-5740 Swift-XRT detections in the field for 3FGL J1628.1-5740

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 29 04.91 -57 31 46.50 7.27 (5 ± 2) x 10-3 13 3.367 3.396

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 16 27 34.34 -57 42 08.79 6.04 (4 ± 2) x 10-3 13 2.976 2.391
2 16 28 24.38 -57 30 13.59 7.97 (2.9 ± 1.2) x 10-3 7 2.398 2.334
3 16 27 05.52 -57 48 06.17 4.90 (4 ± 2) x 10-3 20 3.021 2.267
4 16 27 04.31 -57 47 37.18 4.92 (3 ± 2) x 10-3 22 2.466 1.951
5 16 27 00.85 -57 46 09.74 5.08 (4 ± 2) x 10-3 25 3.608 1.908
6 16 27 47.53 -57 52 10.61 6.52 (2.4 ± 1.3) x 10-3 8 2.296 1.865
7 16 27 16.09 -57 49 38.33 5.31 (2.7 ± 1.4) x 10-3 18 2.652 1.856
8 16 26 52.13 -57 42 11.40 5.05 (3 ± 2) x 10-3 26 2.768 1.801
9 16 26 58.39 -57 45 19.24 4.97 (3 ± 2) x 10-3 21 3.219 1.793
10 16 27 11.03 -57 48 40.78 4.90 (3 ± 2) x 10-3 18 2.652 1.722
11 16 27 27.71 -57 50 09.33 5.76 (2.2 ± 1.3) x 10-3 13 2.280 1.679
12 16 26 52.22 -57 42 10.31 5.05 (3 ± 2) x 10-3 24 3.107 1.644
13 16 27 16.09 -57 49 38.33 5.31 (1.9 ± 1.4) x 10-3 18 2.832 1.369

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1628.1-5740 Swift-XRT image with known radio, optical and UV sources for 3FGL J1628.1-5740

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J162736.2-573810 16 27 36.24 -57 38 10.68 4.86 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J162821-573700 16 28 21.10 -57 37 00.84 3.92 MGPS2
2 MGPS J162714-574227 16 27 14.30 -57 42 27.00 7.44 MGPS2
3 MGPS J162900-573337 16 29 00.41 -57 33 38.16 9.84 MGPS2

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