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 J1220.0-2502

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1220.0-2502 Swift-XRT detections in the field for 3FGL J1220.0-2502

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 12 20 14.43 -24 59 48.04 3.80 (6.8 ± 0.4) x 10-2 270 15.570 15.330

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 12 19 26.29 -25 08 43.49 6.21 (2.4 ± 0.9) x 10-3 14 2.742 2.590
2 12 20 23.50 -24 54 53.66 6.04 (2.3 ± 0.9) x 10-3 13 2.721 2.522
3 12 19 26.71 -25 06 07.67 5.82 (2.5 ± 1.0) x 10-3 14 2.576 2.516
4 12 19 50.16 -25 11 49.12 6.78 (2.1 ± 0.9) x 10-3 11 2.357 2.388
5 12 19 35.42 -24 57 12.38 6.04 (1.9 ± 0.9) x 10-3 16 2.419 2.171
6 12 20 14.44 -24 59 47.97 3.80 N/A 269 2.374 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1220.0-2502 Swift-XRT image with known radio, optical and UV sources for 3FGL J1220.0-2502

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J122001.3-250031 12 20 01.30 -25 00 30.96 2.12 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J122014-245949 12 20 14.40 -24 59 48.84 3.86 NVSS
TGSSADR J122014.6-245949 12 20 14.71 -24 59 48.84 3.89 GMRTAS150M
GLEAM J121940-250758 12 19 40.80 -25 07 59.16 7.29 GLEAMEGCAT
2 NVSS J121940-250801 12 19 40.39 -25 08 02.04 7.40 NVSS
3 WISH B1216.9-2441 12 19 33.70 -24 57 52.92 8.09 WISH
TGSSADR J121934.5-245714 12 19 34.51 -24 57 14.04 8.35 GMRTAS150M
GLEAM J121934-245716 12 19 34.20 -24 57 15.84 8.37 GLEAMEGCAT
4 NVSS J121934-245711 12 19 34.51 -24 57 11.88 8.38 NVSS
5 PMN J1219-2457 12 19 29.59 -24 57 28.08 9.10 PMN
6 NVSS J121909-250819 12 19 09.79 -25 08 20.04 13.27 NVSS

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