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 J2336.9-8427

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2336.9-8427 Swift-XRT detections in the field for 4FGL J2336.9-8427

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 36 27.13 -84 26 48.14 4.60 (1.7 ± 0.2) x 10-2 63 7.123 7.184
2 23 38 48.19 -84 19 47.23 5.76 (4.5 ± 1.3) x 10-3 18 3.673 3.520

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 31.37 -84 19 08.87 6.93 (2.2 ± 0.8) x 10-3 10 2.360 2.632

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2336.9-8427 Swift-XRT image with known radio, optical and UV sources for 4FGL J2336.9-8427


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 J233537-842805 23 35 37.90 -84 28 05.88 1.94 GLEAMEGCAT
SUMSS J233536-842758 23 35 36.70 -84 27 57.96 1.95 SUMSS
2 SUMSS J233526-842933 23 35 26.11 -84 29 33.00 2.85 SUMSS
3 PGC 219556 23 37 56.81 -84 23 51.00 4.13 PGC2003
4 PGC 219312 23 37 22.39 -84 33 09.00 5.48 PGC2003
5 SAO 258979 23 39 53.62 -84 31 35.40 5.75 SAO
PPM 378865 23 39 55.99 -84 31 37.20 5.82 PPM
CD-85 197 23 39 56.16 -84 31 37.56 5.82 ACRS
6 PKS J2340-8432 23 40 57.91 -84 32 43.08 7.65 PKSCAT90
7 PMN J2340-8433 23 40 40.01 -84 33 21.96 7.78 PMN
8 SPASS J234117-843226 23 41 17.59 -84 32 26.88 7.84 SPASS2P3GH
PKS2337-848 23 41 10.80 -84 32 39.84 7.86 DIXON
ATPMN J234050.5-843315 23 40 50.50 -84 33 15.84 7.88 ATPMNCAT
2337-848 23 40 52.99 -84 33 11.88 7.89 MRC
SUMSS J234051-843317 23 40 51.91 -84 33 16.92 7.93 SUMSS
GLEAM J234053-843316 23 40 53.11 -84 33 16.92 7.94 GLEAMEGCAT
ATPMN J234052.3-843318 23 40 52.30 -84 33 18.00 7.95 ATPMNCAT
9 PGC 219261 23 42 07.01 -84 35 24.00 10.68 PGC2003
10 SUMSS J234501-842810 23 45 01.10 -84 28 10.92 11.69 SUMSS
11 SUMSS J232928-842243 23 29 28.99 -84 22 44.04 11.97 SUMSS
12 PPM 789670 23 44 10.34 -84 34 06.96 12.18 PPM
13 SUMSS J233032-841927 23 30 33.00 -84 19 27.12 12.49 SUMSS

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