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 J1616.8-5343

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1616.8-5343 Swift-XRT detections in the field for 3FGL J1616.8-5343

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 16 46.87 -53 43 42.76 4.61 (1.6 ± 0.2) x 10-2 61 6.924 6.843
2 16 16 58.79 -53 41 47.10 5.31 (9 ± 2) x 10-3 33 4.369 4.682
3 16 16 49.08 -53 41 45.41 5.44 (4.7 ± 1.4) x 10-3 27 3.332 3.397
4 16 16 42.76 -53 48 32.36 5.20 (4.1 ± 1.3) x 10-3 36 3.515 3.291

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 42.83 -53 48 32.54 5.20 (2.9 ± 1.1) x 10-3 36 3.011 2.580
2 16 15 48.68 -53 30 59.09 8.27 (1.9 ± 0.8) x 10-3 7 2.379 2.413

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1616.8-5343 Swift-XRT image with known radio, optical and UV sources for 3FGL J1616.8-5343

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 0.40 ROSAT
2RXS J161649.2-534353 16 16 49.27 -53 43 53.04 0.43 ROSAT
2 XMMSL2 J161534.9-533234 16 15 34.90 -53 32 34.08 15.50 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J161621-533825 16 16 21.10 -53 38 25.08 6.54 MGPS2
2 MGPS J161611-534811 16 16 11.90 -53 48 11.16 7.27 MGPS2
3 MGPS J161605-534917 16 16 05.50 -53 49 17.04 8.71 MGPS2
4 [SPT2015] ATCA J1617-5339 16 17 44.71 -53 39 02.88 9.32 FER2FUSRID
[PME2013] J1617-5339 16 17 44.81 -53 39 03.96 9.32 AT2FGLUS
5 MGPS J161541-534321 16 15 40.99 -53 43 21.00 10.10 MGPS2
6 MGPS J161554-533607 16 15 54.50 -53 36 06.84 10.94 MGPS2
7 MGPS J161617-533320 16 16 17.59 -53 33 20.88 11.16 MGPS2
8 [PME2013] J1617-5332 16 17 14.21 -53 32 07.08 11.93 AT2FGLUS
[SPT2015] ATCA J1617-5332 16 17 14.30 -53 32 06.00 11.94 FER2FUSRID
9 MGPS J161741-535259 16 17 41.21 -53 52 59.88 12.24 MGPS2
10 MGPS J161556-535507 16 15 56.59 -53 55 08.04 14.02 MGPS2
11 MGPS J161531-535202 16 15 31.51 -53 52 01.92 14.34 MGPS2

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