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 J1801.5-7825

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1801.5-7825 Swift-XRT detections in the field for 3FGL J1801.5-7825

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 01 06.76 -78 22 48.37 5.20 (9 ± 2) x 10-3 34 4.724 4.853
2 17 58 51.28 -78 17 34.49 5.44 (5 ± 2) x 10-3 18 3.612 3.485

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 17 59 28.98 -78 21 12.19 6.04 (3.1 ± 1.2) x 10-3 12 2.457 2.489
2 18 00 38.03 -78 31 30.26 6.52 (2.7 ± 1.1) x 10-3 15 2.411 2.488
3 18 02 03.23 -78 17 15.24 6.31 (2.8 ± 1.1) x 10-3 14 2.381 2.448
4 18 03 10.04 -78 18 31.28 5.64 (2.1 ± 1.1) x 10-3 16 2.382 1.918

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1801.5-7825 Swift-XRT image with known radio, optical and UV sources for 3FGL J1801.5-7825


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 GLEAM J180048-782025 18 00 48.19 -78 20 26.16 5.51 GLEAMEGCAT
SUMSS J180045-782012 18 00 45.79 -78 20 12.84 5.76 SUMSS
2 SUMSS J175905-782556 17 59 05.11 -78 25 55.92 7.44 SUMSS
3 SPASS J180201-781729 18 02 01.61 -78 17 30.12 8.09 SPASS2P3GH
PMN J1802-7817 18 02 06.19 -78 17 30.84 8.11 PMN
AT20G J180204-781715 18 02 04.70 -78 17 15.00 8.35 AT20G
ATPMN J180205.6-781713 18 02 05.71 -78 17 12.84 8.40 ATPMNCAT
SUMSS J180206-781711 18 02 06.41 -78 17 12.12 8.43 SUMSS
4 PKS1754-782 18 02 22.99 -78 17 03.84 8.76 DIXON
PKS J1802-7817 18 02 21.00 -78 17 02.04 8.76 PKSCAT90
5 [SHM2012] 844 18 04 29.81 -78 26 42.00 8.94 WMAPITNPTS
6 SUMSS J175817-782649 17 58 17.59 -78 26 48.84 9.89 SUMSS
7 SUMSS J180407-781901 18 04 07.01 -78 19 01.92 10.07 SUMSS
8 SUMSS J175905-781839 17 59 05.40 -78 18 38.88 10.09 SUMSS
9 SUMSS J180520-783051 18 05 20.21 -78 30 51.12 12.56 SUMSS
10 SUMSS J180525-781508 18 05 25.80 -78 15 07.92 15.64 SUMSS

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