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 J1016.4-4244

Field

Detected Excesses
Swift-XRT image of the field for 2FGL J1016.4-4244 Swift-XRT detections in the field for 2FGL J1016.4-4244

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 10 16 20.74 -42 47 23.79 4.16 (2.0 ± 0.2) x 10-2 109 9.492 9.465
2 10 16 35.40 -42 43 22.24 5.00 (6.5 ± 1.3) x 10-3 45 4.936 4.955
3 10 15 27.41 -42 42 49.81 5.20 (3.1 ± 0.9) x 10-3 26 3.869 3.389

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 10 17 05.57 -42 43 19.69 6.12 (2.1 ± 0.7) x 10-3 13 2.749 2.850
2 10 16 09.99 -42 35 28.68 5.70 (1.9 ± 0.7) x 10-3 18 2.797 2.702
3 10 15 53.69 -42 49 39.78 5.59 (1.8 ± 0.7) x 10-3 12 2.412 2.494
4 10 16 41.73 -42 37 25.43 4.95 (1.4 ± 0.7) x 10-3 20 2.617 1.892

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 2FGL J1016.4-4244 Swift-XRT image with known radio, optical and UV sources for 2FGL J1016.4-4244

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J101620.6-424730 10 16 20.66 -42 47 30.84 3.19 ROSAT
1RXS J101620.6-424733 10 16 20.59 -42 47 33.36 3.23 ROSAT
2 XMMSL2 J101540.6-424300 10 15 40.56 -42 43 00.12 9.11 XMM-NEWTON
3 2RXS J101646.8-425623 10 16 46.87 -42 56 23.64 12.09 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 [PME2013] J1016-4247 10 16 20.81 -42 47 22.92 3.07 AT2FGLUS
[SPT2015] ATCA J1016-4247 10 16 20.81 -42 47 22.92 3.07 FER2FUSRID
2 SUMSS J101548-423836 10 15 48.50 -42 38 35.88 9.68 SUMSS
TGSSADR J101548.5-423834 10 15 48.50 -42 38 35.16 9.69 GMRTAS150M
GLEAM J101548-423829 10 15 48.41 -42 38 29.04 9.77 GLEAMEGCAT
3 GLEAM J101539-424954 10 15 39.19 -42 49 54.12 10.53 GLEAMEGCAT
4 TGSSADR J101727.2-424404 10 17 27.19 -42 44 03.84 10.66 GMRTAS150M
TGSSADR J101538.5-425007 10 15 38.59 -42 50 08.16 10.74 GMRTAS150M

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