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 J1217.2-2500

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1217.2-2500 Swift-XRT detections in the field for 4FGL J1217.2-2500

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 12 17 35.05 -24 55 14.67 5.89 (5.1 ± 1.3) x 10-3 21 4.106 3.848

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 16 39.72 -25 07 28.28 5.96 (2.1 ± 1.0) x 10-3 10 2.480 2.234
2 12 17 34.27 -24 57 26.92 6.41 (1.6 ± 0.8) x 10-3 12 2.423 1.998

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1217.2-2500 Swift-XRT image with known radio, optical and UV sources for 4FGL J1217.2-2500


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 3081984 12 17 12.19 -24 59 42.00 1.30 PGC2003
2 PGC 783463 12 17 09.00 -25 01 30.00 2.10 PGC2003
3 PGC 784176 12 17 14.11 -24 57 51.12 2.65 PGC2003
WISH B1214.7-2447 12 17 22.99 -25 04 15.96 4.08 WISH
GLEAM J121723-250438 12 17 23.50 -25 04 37.92 4.47 GLEAMEGCAT
4 NVSS J121723-250444 12 17 23.59 -25 04 44.04 4.57 NVSS
QORG J121723.7-250451 12 17 23.71 -25 04 50.88 4.69 QORGCAT
QORG J121735.1-245700 12 17 35.11 -24 56 60.00 5.35 QORGCAT
PGC 784341 12 17 35.11 -24 56 60.00 5.35 PGC2003
5 NVSS J121735-245659 12 17 35.21 -24 56 60.00 5.38 NVSS
6 ON-223.9 12 16 54.91 -25 03 39.96 5.97 DIXON
7 PGC 784351 12 17 45.79 -24 56 57.84 7.39 PGC2003
TGSSADR J121716.0-245252 12 17 16.01 -24 52 53.04 7.54 GMRTAS150M
GLEAM J121645-245739 12 16 45.91 -24 57 38.88 7.57 GLEAMEGCAT
WISH B1214.6-2436 12 17 16.70 -24 52 50.16 7.60 WISH
8 NVSS J121716-245244 12 17 16.80 -24 52 45.12 7.67 NVSS
QORG J121716.9-245244 12 17 16.90 -24 52 44.04 7.69 QORGCAT
GLEAM J121716-245242 12 17 16.80 -24 52 42.96 7.71 GLEAMEGCAT
9 NVSS J121644-245739 12 16 44.40 -24 57 38.88 7.88 NVSS
TGSSADR J121717.8-245230 12 17 17.81 -24 52 30.00 7.92 GMRTAS150M
10 PGC 784896 12 17 43.80 -24 54 01.08 8.83 PGC2003
11 PMN J1216-2501 12 16 31.99 -25 01 18.84 10.23 PMN
12 NVSS J121640-245405 12 16 40.80 -24 54 06.12 10.35 NVSS
13 PGC 784170 12 18 08.50 -24 57 51.84 11.95 PGC2003
WISH B1214.4-2455 12 17 01.61 -25 12 05.04 12.17 WISH
GLEAM J121701-251205 12 17 01.90 -25 12 06.12 12.17 GLEAMEGCAT
14 NVSS J121701-251207 12 17 01.80 -25 12 06.84 12.20 NVSS
TGSSADR J121701.7-251207 12 17 01.70 -25 12 06.84 12.20 GMRTAS150M
TXS 1214-249 12 17 01.70 -25 12 09.00 12.23 TEXAS
VLSSr J121702.9-251219 12 17 03.00 -25 12 19.08 12.32 VLSSR

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