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 J2046.7-4259

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2046.7-4259 Swift-XRT detections in the field for 3FGL J2046.7-4259

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 46 42.63 -42 51 41.26 6.21 (4.1 ± 1.1) x 10-3 19 3.457 3.606
2 20 45 52.26 -42 56 25.50 6.78 (3.9 ± 1.1) x 10-3 15 3.168 3.570

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 20 45 58.91 -43 04 30.70 6.65 (2.5 ± 0.9) x 10-3 12 2.660 2.670
2 20 46 29.84 -42 51 28.01 7.48 (2.1 ± 0.9) x 10-3 9 2.440 2.461
3 20 45 27.92 -43 03 03.34 6.52 (1.9 ± 0.8) x 10-3 9 2.660 2.252
4 20 45 50.25 -43 09 24.67 5.96 (2.1 ± 1.0) x 10-3 10 2.484 2.208

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2046.7-4259 Swift-XRT image with known radio, optical and UV sources for 3FGL J2046.7-4259


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 TGSSADR J204643.4-425721 20 46 43.51 -42 57 21.96 1.83 GMRTAS150M
[PME2013] J2046-4257 20 46 44.11 -42 57 12.96 1.94 AT2FGLUS
[SPT2015] ATCA J2046-425A 20 46 43.99 -42 57 12.96 1.94 FER2FUSRID
SUMSS J204643-425711 20 46 43.90 -42 57 11.16 1.97 SUMSS
2 SUMSS J204649-430213 20 46 49.30 -43 02 13.92 3.20 SUMSS
TGSSADR J204649.1-430216 20 46 49.10 -43 02 16.08 3.24 GMRTAS150M
3 [SPT2015] ATCA J2046-4257 20 46 16.39 -42 57 06.12 6.00 FER2FUSRID
[PME2013] J2046-425A 20 46 16.39 -42 57 06.12 6.00 AT2FGLUS

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