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 04.64 -57 31 47.42 7.27 (5 ± 2) x 10-3 13 3.366 3.411

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 34.07 -57 42 08.40 6.12 (4 ± 2) x 10-3 13 2.871 2.605
2 16 28 24.30 -57 30 12.25 7.97 (2.8 ± 1.2) x 10-3 8 2.397 2.351
3 16 27 05.03 -57 48 10.40 4.92 (4 ± 2) x 10-3 19 3.021 2.267
4 16 29 05.31 -57 36 01.11 7.97 (2.9 ± 1.3) x 10-3 6 2.202 2.221
5 16 26 59.88 -57 46 11.05 5.05 (5 ± 2) x 10-3 25 3.608 2.144
6 16 27 47.38 -57 52 15.38 6.52 (2.6 ± 1.3) x 10-3 8 2.297 1.993
7 16 27 15.95 -57 49 47.73 5.40 (2.6 ± 1.4) x 10-3 16 2.653 1.852
8 16 26 51.79 -57 42 13.73 5.05 (2.6 ± 1.4) x 10-3 26 2.942 1.801
9 16 27 04.34 -57 47 39.47 4.90 (3 ± 2) x 10-3 22 2.466 1.711
10 16 27 27.53 -57 50 12.82 5.70 (2.2 ± 1.3) x 10-3 13 2.282 1.706
11 16 27 00.52 -57 46 11.80 5.05 (3 ± 2) x 10-3 25 3.321 1.705
12 16 27 15.28 -57 49 34.30 5.20 (2 ± 2) x 10-3 19 2.653 1.518
13 16 27 09.15 -57 48 36.33 4.92 (1.6 ± 1.4) x 10-3 20 2.653 1.168

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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