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.

4FGL J1016.1-4247

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1016.1-4247 Swift-XRT detections in the field for 4FGL J1016.1-4247

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 10 16 20.77 -42 47 23.16 4.22 (2.1 ± 0.2) x 10-2 98 8.998 8.926
2 10 16 34.26 -42 43 18.98 4.97 (7.1 ± 1.4) x 10-3 38 4.980 4.943
3 10 15 27.36 -42 42 48.83 5.31 (3.5 ± 1.0) x 10-3 24 3.754 3.309

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 05.43 -42 43 20.05 6.31 (2.2 ± 0.8) x 10-3 11 2.627 2.678
2 10 16 10.18 -42 35 27.12 5.96 (2.0 ± 0.8) x 10-3 16 2.460 2.621
3 10 15 22.20 -42 34 22.67 6.31 (1.2 ± 0.6) x 10-3 7 2.287 1.973

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1016.1-4247 Swift-XRT image with known radio, optical and UV sources for 4FGL J1016.1-4247

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J101620.6-424733 10 16 20.59 -42 47 33.36 2.07 ROSAT
2RXS J101620.6-424730 10 16 20.66 -42 47 30.84 2.07 ROSAT
2 XMMSL2 J101540.6-424300 10 15 40.56 -42 43 00.12 6.74 XMM-NEWTON
3 2RXS J101646.8-425623 10 16 46.87 -42 56 23.64 11.52 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 2.07 AT2FGLUS
[SPT2015] ATCA J1016-4247 10 16 20.81 -42 47 22.92 2.07 FER2FUSRID
2 PPM 757275 10 16 25.10 -42 43 57.72 4.26 PPM
3 PPM 757268 10 16 12.48 -42 42 47.88 4.36 PPM
4 NN 10 16 10.51 -42 52 58.08 5.85 ACRS
PPM 315190 10 16 10.54 -42 52 58.08 5.85 PPM
SAO 221921 10 16 10.44 -42 52 58.44 5.85 SAO
5 GLEAM J101539-424954 10 15 39.19 -42 49 54.12 6.22 GLEAMEGCAT
TGSSADR J101538.5-425007 10 15 38.59 -42 50 08.16 6.43 GMRTAS150M
6 SUMSS J101523-424715 10 15 23.30 -42 47 15.00 8.50 SUMSS
GLEAM J101523-424719 10 15 23.21 -42 47 18.96 8.50 GLEAMEGCAT
TGSSADR J101522.6-424712 10 15 22.70 -42 47 12.12 8.61 GMRTAS150M
7 SUMSS J101548-423836 10 15 48.50 -42 38 35.88 9.36 SUMSS
TGSSADR J101548.5-423834 10 15 48.50 -42 38 35.16 9.37 GMRTAS150M
GLEAM J101548-423829 10 15 48.41 -42 38 29.04 9.48 GLEAMEGCAT
8 TGSSADR J101523.2-424214 10 15 23.21 -42 42 14.04 9.81 GMRTAS150M
PPM 757255 10 15 21.79 -42 42 05.04 10.12 PPM
9 WDS J10171-4241 10 17 06.00 -42 40 59.88 12.04 WDS
10 SAO 221908 10 15 10.39 -42 41 23.28 12.29 SAO
CD-42 6070 10 15 10.34 -42 41 22.92 12.30 ACRS
PPM 315174 10 15 10.37 -42 41 22.56 12.30 PPM
11 PGC 556865 10 15 06.60 -42 51 28.08 12.34 PGC2003
12 PPM 757250 10 15 07.61 -42 42 07.20 12.43 PPM
13 PPM 315199 10 16 44.33 -42 58 55.92 13.42 PPM

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