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 J1901.8-0718

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1901.8-0718 Swift-XRT detections in the field for 4FGL J1901.8-0718


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 19 01 42.90 -07 18 00.54 8.27 (5 ± 2) x 10-3 8 2.277 2.399
2 19 02 00.86 -07 10 21.98 7.97 (4 ± 2) x 10-3 7 2.216 2.220

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1901.8-0718 Swift-XRT image with known radio, optical and UV sources for 4FGL J1901.8-0718


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 OU-098.5 19 01 46.99 -07 15 38.88 2.70 DIXON
2 NVSS J190138-071617 19 01 38.11 -07 16 18.12 3.47 NVSS
3 NVSS J190149-072353 19 01 49.61 -07 23 53.16 5.62 NVSS
TGSSADR J190133.1-071352 19 01 33.10 -07 13 53.04 6.00 GMRTAS150M
4 NVSS J190133-071353 19 01 33.10 -07 13 53.04 6.00 NVSS
5 V943 Aql 19 01 59.42 -07 11 51.36 6.86 GCVS
6 CGMW 3-2993 19 02 17.38 -07 15 36.72 7.39 CGMW
PGC 203228 19 02 17.40 -07 15 37.08 7.39 PGC2003
7 NVSS J190217-072241 19 02 17.21 -07 22 41.16 8.15 NVSS
8 NSV 11654 19 01 39.91 -07 10 03.00 8.56 GCVSNSVARS
9 NVSS J190142-072814 19 01 42.50 -07 28 14.16 10.12 NVSS
10 PPM 707484 19 02 24.19 -07 11 47.04 10.76 PPM
PMN J1901-0706 19 01 39.70 -07 06 20.88 12.17 PMN
TXS 1858-071 19 01 39.91 -07 06 20.16 12.19 TEXAS
11 NVSS J190139-070617 19 01 39.91 -07 06 18.00 12.22 NVSS
TGSSADR J190139.9-070617 19 01 39.91 -07 06 16.92 12.22 GMRTAS150M
12 PGC 203191 19 01 15.50 -07 27 29.16 12.50 PGC2003
CGMW 3-2951 19 01 15.50 -07 27 29.16 12.50 CGMW
13 WDS J19022-0730 19 02 12.00 -07 30 00.00 12.98 WDS
14 PPM 707464 19 01 06.36 -07 07 24.96 15.26 PPM

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