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 J1931.1+1659

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1931.1+1659 Swift-XRT detections in the field for 3FGL J1931.1+1659


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 31 37.23 +16 56 09.97 6.41 (1.8 ± 0.6) x 10-3 12 2.880 2.871

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1931.1+1659 Swift-XRT image with known radio, optical and UV sources for 3FGL J1931.1+1659

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 IGR J19311+1708 19 31 08.59 +17 08 20.04 8.87 INTEGRAL

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J193103+170051 19 31 03.70 +17 00 51.84 1.59 NVSS
WSRTGP 1928+1654B 19 30 40.51 +17 01 00.84 6.50 WSRTGP
CGPS J193040+170103 19 30 40.61 +17 01 04.08 6.51 CGPSNGPCAT
2 NVSS J193040+170101 19 30 40.39 +17 01 00.84 6.52 NVSS
3 NVSS J193130+165304 19 31 30.79 +16 53 04.92 8.57 NVSS
QORG J193131.2+165304 19 31 31.20 +16 53 03.84 8.64 QORGCAT
QORG J193117.2+170911 19 31 17.21 +17 09 11.16 10.02 QORGCAT
4 NVSS J193117+170913 19 31 17.21 +17 09 14.04 10.06 NVSS
5 NVSS J193147+165532 19 31 47.21 +16 55 32.88 10.39 NVSS
6 WSRTGP 1928+1654A 19 30 23.59 +17 00 30.96 10.42 WSRTGP
CGPS J193147+165515 19 31 47.69 +16 55 15.96 10.62 CGPSNGPCAT
7 NVSS J193148+165440 19 31 48.19 +16 54 39.96 10.98 NVSS
8 NVSS J193020+165519 19 30 20.21 +16 55 19.92 11.92 NVSS
9 SAO 104916 19 30 31.85 +16 48 03.96 14.16 SAO
BD+16 3874 19 30 31.80 +16 48 04.68 14.16 ACRS
HD 183775 19 30 31.78 +16 48 04.68 14.16 HIC
HIP 95927 19 30 31.78 +16 48 04.68 14.16 HIPPARCOS
PPM 136406 19 30 31.78 +16 48 04.32 14.17 PPM
WSRTGP 1928+1641 19 30 33.60 +16 47 39.84 14.25 WSRTGP
CGPS J193033+164739 19 30 33.60 +16 47 39.84 14.25 CGPSNGPCAT
TGSSADR J193034.0+164733 19 30 34.01 +16 47 33.00 14.28 GMRTAS150M
10 NVSS J193033+164736 19 30 33.60 +16 47 36.96 14.30 NVSS
11 TGSSADR J193018.4+170805 19 30 18.41 +17 08 06.00 14.45 GMRTAS150M
12 PGCC G52.48-1.01 19 31 56.11 +16 50 20.04 14.90 PLANCKGCC

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