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 J1216.4-1358

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1216.4-1358 Swift-XRT detections in the field for 4FGL J1216.4-1358

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 12 15 49.89 -13 48 58.01 6.12 (1.2 ± 0.2) x 10-2 23 4.442 6.481
2 12 16 18.99 -13 58 56.58 5.76 (5.1 ± 1.4) x 10-3 21 3.922 3.757
3 12 16 41.26 -13 53 09.09 5.82 (3.9 ± 1.2) x 10-3 20 3.388 3.239

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 12 17 03.81 -14 02 29.84 5.20 (3.2 ± 1.2) x 10-3 22 2.987 2.679
2 12 17 07.89 -14 00 36.60 5.20 (3.0 ± 1.1) x 10-3 21 3.583 2.600
3 12 15 30.61 -14 04 18.27 8.27 (2.7 ± 1.1) x 10-3 8 2.485 2.566
4 12 16 55.69 -14 06 09.03 5.59 (2.3 ± 1.0) x 10-3 17 2.732 2.269
5 12 17 07.89 -14 00 36.60 5.20 (1.7 ± 0.9) x 10-3 21 2.395 1.837
6 12 16 59.57 -14 04 24.89 4.90 (1.6 ± 1.0) x 10-3 24 3.170 1.646
7 12 17 03.95 -14 02 18.40 4.95 (1.7 ± 1.0) x 10-3 20 2.523 1.642
8 12 16 56.45 -14 05 48.56 5.31 (1.5 ± 0.9) x 10-3 19 2.468 1.637
9 12 17 07.10 -14 00 56.58 5.08 (1.3 ± 0.9) x 10-3 21 2.698 1.429

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1216.4-1358 Swift-XRT image with known radio, optical and UV sources for 4FGL J1216.4-1358

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J121704.5-140828 12 17 04.68 -14 08 27.60 13.82 XMM-NEWTON
XMMSL2 J121704.5-140828 12 17 04.68 -14 08 27.60 13.82 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J121619-135151 12 16 19.99 -13 51 51.84 6.72 NVSS
2 NVSS J121640-135132 12 16 40.51 -13 51 32.04 7.83 NVSS
3 PGC 929348 12 16 04.30 -14 04 27.12 7.88 PGC2003
4 NVSS J121602-135222 12 16 03.00 -13 52 22.08 8.16 NVSS
5 NVSS J121612-140616 12 16 12.91 -14 06 15.84 8.39 NVSS
WISH B1213.6-1350 12 16 13.20 -14 07 18.84 9.34 WISH
6 NVSS J121613-140720 12 16 13.20 -14 07 21.00 9.38 NVSS
TGSSADR J121613.1-140722 12 16 13.20 -14 07 23.16 9.41 GMRTAS150M
7 PGC 931999 12 15 54.50 -13 52 37.92 9.49 PGC2003
8 PPM 225603 12 16 22.18 -13 47 00.24 11.48 PPM
9 HD 106624 12 15 49.92 -13 49 00.12 12.78 HIC
HIP 59807 12 15 49.90 -13 49 00.12 12.79 HIPPARCOS
PPM 225594 12 15 49.90 -13 49 00.12 12.79 PPM
SAO 157177 12 15 49.92 -13 48 59.76 12.79 SAO
BD-13 3509 12 15 49.90 -13 49 00.12 12.79 ACRS
10 PGC 932246 12 17 10.20 -13 51 33.84 12.87 PGC2003
11 PGC 928095 12 15 49.51 -14 10 09.84 14.59 PGC2003
12 PGC 932940 12 15 37.39 -13 48 37.08 15.24 PGC2003

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