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 J2337.2-8425

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2337.2-8425 Swift-XRT detections in the field for 3FGL J2337.2-8425

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 36 26.35 -84 26 49.50 4.60 (1.7 ± 0.2) x 10-2 63 7.092 7.193
2 23 38 50.35 -84 19 44.72 5.76 (5.2 ± 1.3) x 10-3 20 3.843 3.911

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 23 44 30.00 -84 19 04.14 7.09 (2.2 ± 0.8) x 10-3 11 2.515 2.643

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2337.2-8425 Swift-XRT image with known radio, optical and UV sources for 3FGL J2337.2-8425

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J233556.6-841442 23 35 56.62 -84 14 42.36 10.81 ROSAT
2RXS J233556.6-841442 23 35 56.62 -84 14 42.36 10.81 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J233536-842758 23 35 36.70 -84 27 57.96 3.55 SUMSS
GLEAM J233537-842805 23 35 37.90 -84 28 05.88 3.62 GLEAMEGCAT
2 SUMSS J233526-842933 23 35 26.11 -84 29 33.00 4.96 SUMSS
3 PKS J2340-8432 23 40 57.91 -84 32 43.08 9.11 PKSCAT90
4 SPASS J234117-843226 23 41 17.59 -84 32 26.88 9.18 SPASS2P3GH
PKS2337-848 23 41 10.80 -84 32 39.84 9.26 DIXON
5 PMN J2340-8433 23 40 40.01 -84 33 21.96 9.41 PMN
2337-848 23 40 52.99 -84 33 11.88 9.44 MRC
ATPMN J234050.5-843315 23 40 50.50 -84 33 15.84 9.45 ATPMNCAT
SUMSS J234051-843317 23 40 51.91 -84 33 16.92 9.49 SUMSS
GLEAM J234053-843316 23 40 53.11 -84 33 16.92 9.51 GLEAMEGCAT
ATPMN J234052.3-843318 23 40 52.30 -84 33 18.00 9.52 ATPMNCAT
6 SUMSS J233032-841927 23 30 33.00 -84 19 27.12 11.49 SUMSS
7 SUMSS J234501-842810 23 45 01.10 -84 28 10.92 11.62 SUMSS
8 SUMSS J232928-842243 23 29 28.99 -84 22 44.04 11.67 SUMSS
9 GLEAM J234524-842056 23 45 24.00 -84 20 57.12 12.74 GLEAMEGCAT

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