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 J1831.1-6503

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1831.1-6503 Swift-XRT detections in the field for 4FGL J1831.1-6503


No detected excesses found.

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1831.1-6503 Swift-XRT image with known radio, optical and UV sources for 4FGL J1831.1-6503

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J183153.9-650726 18 31 53.90 -65 07 26.40 6.08 ROSAT
2RXS J183153.9-650726 18 31 53.90 -65 07 26.40 6.08 ROSAT
2 EXO 1827.8-6518 18 32 51.24 -65 15 30.24 15.94 EXOSAT
Unknown 18 32 51.24 -65 15 30.24 15.94 EXOSAT
3 Unknown 18 32 59.62 -65 14 53.88 16.15 EXOSAT
Unknown 18 32 57.67 -65 15 12.96 16.22 EXOSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J183123-650720 18 31 23.81 -65 07 21.00 3.85 SUMSS
[SPT2015] ATCA J1831-6507 18 31 23.30 -65 07 23.88 3.87 FER2FUSRID
2 PGC 316701 18 31 44.30 -65 03 19.08 4.03 PGC2003
3 SUMSS J183145-650657 18 31 45.50 -65 06 57.96 5.08 SUMSS
[SPT2015] ATCA J1831-650A 18 31 46.80 -65 07 03.00 5.25 FER2FUSRID
4 PPM 782052 18 31 56.45 -65 08 33.00 6.98 PPM
5 SUMSS J183144-651117 18 31 44.71 -65 11 17.16 8.36 SUMSS
GLEAM J183145-651116 18 31 45.50 -65 11 17.16 8.40 GLEAMEGCAT
6 SUMSS J183233-650422 18 32 33.91 -65 04 22.08 9.22 SUMSS
[SPT2015] ATCA J1832-6504 18 32 33.91 -65 04 23.88 9.22 FER2FUSRID
7 QORG J183059.8-645422 18 30 59.81 -64 54 21.96 9.61 QORGCAT
8 [SPT2015] ATCA J1832-6456 18 32 19.99 -64 56 57.12 10.45 FER2FUSRID
SUMSS J183220-645651 18 32 20.40 -64 56 51.00 10.55 SUMSS
9 PGC 318198 18 31 04.90 -64 53 22.92 10.57 PGC2003
10 PPM 782037 18 29 21.31 -65 02 28.32 11.20 PPM
11 SUMSS J183235-651211 18 32 36.00 -65 12 11.88 12.50 SUMSS
QORG J183236.0-651212 18 32 36.00 -65 12 11.88 12.51 QORGCAT
12 V403 Pav 18 29 36.38 -64 54 39.60 13.31 GCVS
13 SUMSS J182918-645241 18 29 18.60 -64 52 41.16 16.04 SUMSS
14 HD 170196 18 32 52.97 -65 15 41.40 16.20 HIC
CD-65 2486 18 32 52.99 -65 15 41.40 16.21 ACRS
PPM 363406 18 32 52.97 -65 15 41.76 16.21 PPM
HIP 90927 18 32 52.99 -65 15 41.76 16.21 HIPPARCOS
SAO 254280 18 32 53.06 -65 15 45.36 16.26 SAO

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