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.

4FGL J0957.6-5208

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0957.6-5208 Swift-XRT detections in the field for 4FGL J0957.6-5208


No detected excesses found.

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 09 57 33.87 -52 19 31.49 8.27 (2.4 ± 0.8) x 10-3 9 2.281 2.863
2 09 57 01.78 -52 12 18.21 5.82 (3.3 ± 1.1) x 10-3 17 3.100 2.859
3 09 58 15.13 -52 15 42.67 6.93 (2.6 ± 0.9) x 10-3 10 2.778 2.754

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0957.6-5208 Swift-XRT image with known radio, optical and UV sources for 4FGL J0957.6-5208

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J095701.1-521210 09 57 01.13 -52 12 10.08 7.12 ROSAT
1RXS J095658.6-521215 09 56 58.61 -52 12 15.12 7.50 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SAO 237543 09 58 05.98 -52 09 42.84 3.90 SAO
PPM 338531 09 58 06.10 -52 09 43.92 3.92 PPM
HD 298743 09 58 06.12 -52 09 43.92 3.93 HDEC
2 ATPMN J095723.2-520530 09 57 23.30 -52 05 30.84 4.21 ATPMNCAT
MGPS J095723-520530 09 57 23.11 -52 05 30.12 4.23 MGPS2
TGSSADR J095722.9-520524 09 57 22.99 -52 05 25.08 4.31 GMRTAS150M
PMN J0957-5205 09 57 22.01 -52 05 17.88 4.50 PMN
3 HD 298742 09 58 14.62 -52 06 53.64 5.38 HDEC
4 MGPS J095805-521441 09 58 05.40 -52 14 40.92 7.06 MGPS2
5 EF Vel 09 57 10.94 -52 15 26.64 8.25 GCVS
6 PMN J0958-5215 09 58 14.30 -52 15 20.88 8.37 PMN
7 HD 298746 09 57 17.35 -52 16 17.40 8.49 HDEC
8 MGPS J095646-520706 09 56 46.99 -52 07 06.96 8.51 MGPS2
MGPS J095815-521534 09 58 15.10 -52 15 34.92 8.63 MGPS2
TGSSADR J095815.1-521536 09 58 15.10 -52 15 36.00 8.65 GMRTAS150M
9 HD 298747 09 57 58.18 -52 17 34.08 9.27 HDEC
10 TGSSADR J095720.7-515924 09 57 20.71 -51 59 24.00 9.79 GMRTAS150M
MGPS J095720-515920 09 57 20.71 -51 59 20.04 9.85 MGPS2
11 HD 298741 B 09 57 20.47 -51 58 50.88 10.32 HDEC
HD 298741 A 09 57 20.52 -51 58 42.96 10.45 HDEC
12 TGSSADR J095842.7-520025 09 58 42.70 -52 00 25.92 12.49 GMRTAS150M
MGPS J095842-520025 09 58 42.70 -52 00 25.92 12.49 MGPS2
13 HD 298787 09 58 58.68 -52 13 09.48 12.66 HDEC

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