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.

2FGL J1617.3-5336

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J1617.3-5336 Swift-XRT detections in the field for 2FGL J1617.3-5336

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 16 46.68 -53 43 41.53 4.48 (1.3 ± 0.2) x 10-2 63 7.346 7.176
2 16 16 49.27 -53 41 39.54 5.05 (3.7 ± 1.1) x 10-3 25 3.453 3.431
3 16 16 58.30 -53 41 49.84 5.40 (3.7 ± 1.1) x 10-3 24 3.308 3.395

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 16 42.99 -53 48 24.37 5.02 (2.6 ± 1.0) x 10-3 29 3.894 2.696
2 16 16 42.99 -53 48 24.37 5.02 (1.1 ± 0.7) x 10-3 29 2.663 1.655
3 16 16 23.93 -53 40 23.96 5.35 (10 ± 7) x 10-4 13 2.468 1.506

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J1617.3-5336 Swift-XRT image with known radio, optical and UV sources for 2FGL J1617.3-5336

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J161649.2-534351 16 16 49.20 -53 43 51.60 8.50 ROSAT
2RXS J161649.2-534353 16 16 49.27 -53 43 53.04 8.52 ROSAT
2 1RXS J161819.8-533630 16 18 19.80 -53 36 29.88 8.65 ROSAT
3 1RXS J161834.8-534132 16 18 34.80 -53 41 31.92 11.83 ROSAT
1RXS J161834.8-534132 16 18 34.80 -53 41 32.64 11.83 ROSAT
2RXS J161835.0-534133 16 18 35.21 -53 41 33.36 11.86 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 [SPT2015] ATCA J1617-5339 16 17 44.71 -53 39 02.88 4.08 FER2FUSRID
[PME2013] J1617-5339 16 17 44.81 -53 39 03.96 4.11 AT2FGLUS
2 [PME2013] J1617-5332 16 17 14.21 -53 32 07.08 4.85 AT2FGLUS
[SPT2015] ATCA J1617-5332 16 17 14.30 -53 32 06.00 4.85 FER2FUSRID
3 MGPS J161621-533825 16 16 21.10 -53 38 25.08 9.09 MGPS2
4 MGPS J161617-533320 16 16 17.59 -53 33 20.88 10.12 MGPS2
5 MGPS J161611-534811 16 16 11.90 -53 48 11.16 15.33 MGPS2

Penn State University Goddard Space Flight Center Swift