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 J2131.4-1124

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J2131.4-1124 Swift-XRT detections in the field for 4FGL J2131.4-1124


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 21 30 50.03 -11 22 31.88 5.89 (2.2 ± 1.0) x 10-3 12 2.461 2.336
2 21 31 30.47 -11 17 21.72 6.78 (1.9 ± 0.9) x 10-3 9 2.266 2.163

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2131.4-1124 Swift-XRT image with known radio, optical and UV sources for 4FGL J2131.4-1124


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 PPM 238969 21 31 35.59 -11 24 15.48 2.76 PPM
2 PPM 238963 21 31 24.77 -11 20 21.48 4.46 PPM
3 NVSS J213120-113037 21 31 19.99 -11 30 37.08 5.91 NVSS
4 NVSS J213110-111735 21 31 10.90 -11 17 35.88 7.96 NVSS
TGSSADR J213110.8-111735 21 31 10.90 -11 17 35.16 7.97 GMRTAS150M
GLEAM J213111-111721 21 31 11.50 -11 17 21.84 8.12 GLEAMEGCAT
5 OX-147 21 31 30.00 -11 16 44.04 8.19 DIXON
6 PPM 238949 21 30 50.16 -11 22 14.88 8.82 PPM
TGSSADR J213200.6-112531 21 32 00.70 -11 25 32.16 8.88 GMRTAS150M
GLEAM J213200-112530 21 32 00.79 -11 25 31.08 8.90 GLEAMEGCAT
7 NVSS J213200-112531 21 32 00.79 -11 25 31.08 8.90 NVSS
WISH B2129.3-1139 21 32 00.70 -11 25 51.96 8.92 WISH
VLSSr J213201.6-112538 21 32 01.61 -11 25 37.92 9.11 VLSSR
2128-114 21 31 26.50 -11 15 41.04 9.15 MRC
WISH B2128.7-1128 21 31 26.50 -11 15 39.96 9.16 WISH
TXS 2128-114 21 31 26.50 -11 15 38.88 9.18 TEXAS
8 NVSS J213126-111539 21 31 26.59 -11 15 38.88 9.18 NVSS
TGSSADR J213126.5-111539 21 31 26.59 -11 15 38.88 9.19 GMRTAS150M
GLEAM J213126-111537 21 31 26.50 -11 15 37.08 9.21 GLEAMEGCAT
VLSSr J213127.1-111533 21 31 27.10 -11 15 33.84 9.28 VLSSR
9 PMN J2131-1115 21 31 27.00 -11 15 06.84 9.72 PMN
10 PPM 722721 21 31 58.94 -11 30 06.48 9.94 PPM
11 NVSS J213158-111918 21 31 58.90 -11 19 18.12 10.05 NVSS
12 SPASS J213125-111442 21 31 25.30 -11 14 43.08 10.11 SPASS2P3GH
13 PGC 965134 21 32 01.90 -11 29 27.96 10.26 PGC2003
14 NVSS J213126-113641 21 31 26.71 -11 36 42.12 11.89 NVSS
TGSSADR J213126.5-113642 21 31 26.59 -11 36 42.12 11.89 GMRTAS150M
GLEAM J213125-113645 21 31 25.61 -11 36 45.00 11.94 GLEAMEGCAT
15 NVSS J213204-111422 21 32 04.20 -11 14 22.92 14.26 NVSS

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