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 J0731.5-1910c

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0731.5-1910c Swift-XRT detections in the field for 4FGL J0731.5-1910c


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 07 31 21.87 -19 10 33.75 6.52 (3.6 ± 1.3) x 10-3 14 2.939 2.829
2 07 32 11.17 -19 12 48.82 7.09 (2.8 ± 1.2) x 10-3 8 2.480 2.423

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0731.5-1910c Swift-XRT image with known radio, optical and UV sources for 4FGL J0731.5-1910c


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 218782 07 31 21.91 -19 10 32.88 2.89 PPM
BD-18 1882 07 31 21.91 -19 10 32.52 2.89 ACRS
SAO 153004 07 31 21.82 -19 10 32.16 2.91 SAO
2 PPM 714179 07 31 38.16 -19 14 21.12 4.21 PPM
3 PGCC G234.56-0.22 07 31 35.69 -19 15 20.16 5.09 PLANCKGCC
4 NVSS J073106-190829 07 31 06.41 -19 08 30.12 6.78 NVSS
5 NVSS J073204-191235 07 32 04.10 -19 12 34.92 7.46 NVSS
6 NVSS J073209-191119 07 32 09.79 -19 11 18.96 8.51 NVSS
7 NVSS J073136-190140 07 31 36.60 -19 01 41.16 8.60 NVSS
8 OI-150 07 31 44.59 -18 59 26.16 11.10 DIXON
9 PCCS2 070 G234.67-00.20 07 31 54.50 -19 20 47.04 11.57 PCCS070GHZ
10 PMN J0731-1859 07 31 07.90 -18 59 56.04 12.03 PMN
QORG J073146.7-192155 07 31 46.70 -19 21 55.08 12.04 QORGCAT
11 NVSS J073146-192155 07 31 46.80 -19 21 55.08 12.04 NVSS
12 OI-148 07 31 01.61 -18 59 22.92 13.31 DIXON

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