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 J1646.9-1332

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1646.9-1332 Swift-XRT detections in the field for 3FGL J1646.9-1332


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 16 46 51.64 -13 28 54.90 8.62 (4 ± 2) x 10-3 9 2.569 2.793

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1646.9-1332 Swift-XRT image with known radio, optical and UV sources for 3FGL J1646.9-1332


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 NVSS J164649-133230 16 46 49.39 -13 32 30.84 2.47 NVSS
2 NVSS J164710-133119 16 47 10.80 -13 31 18.84 3.18 NVSS
[SPT2015] ATCA J1646-1328 16 46 51.89 -13 28 49.08 4.45 FER2FUSRID
TXS 1644-133 16 46 51.70 -13 28 50.16 4.45 TEXAS
[PME2013] J1646-1328 16 46 51.89 -13 28 48.00 4.45 AT2FGLUS
TGSSADR J164651.7-132849 16 46 51.70 -13 28 49.08 4.46 GMRTAS150M
3 NVSS J164651-132849 16 46 51.70 -13 28 49.08 4.47 NVSS
4 PMN J1646-1329 16 46 49.80 -13 29 02.04 4.49 PMN
GLEAM J164651-132846 16 46 51.70 -13 28 46.92 4.49 GLEAMEGCAT
WISH B1644.0-1323 16 46 51.60 -13 28 41.16 4.59 WISH
VLSSr J164652.3-132829 16 46 52.39 -13 28 30.00 4.69 VLSSR
5 SPASS J164715-132922 16 47 15.60 -13 29 21.84 5.25 SPASS2P3GH
6 NVSS J164734-133257 16 47 34.20 -13 32 57.12 8.45 NVSS
7 NVSS J164709-134106 16 47 09.70 -13 41 06.00 8.60 NVSS
8 NVSS J164619-133517 16 46 19.20 -13 35 17.88 10.07 NVSS
9 NVSS J164657-132110 16 46 57.91 -13 21 11.16 11.70 NVSS
WISH B1644.9-1330 16 47 47.50 -13 35 34.08 11.98 WISH
10 NVSS J164748-133536 16 47 48.19 -13 35 36.96 12.16 NVSS

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