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 J1951.3-8015

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1951.3-8015 Swift-XRT detections in the field for 4FGL J1951.3-8015


No detected excesses found.

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 19 49 36.95 -80 09 31.60 7.09 (2.3 ± 1.0) x 10-3 11 2.206 2.352
2 19 50 25.43 -80 25 59.27 4.67 (4 ± 2) x 10-3 21 2.873 2.245
3 19 48 58.09 -80 25 21.93 4.78 (3 ± 2) x 10-3 21 2.620 2.067
4 19 51 53.04 -80 27 40.52 5.40 (2.1 ± 1.1) x 10-3 13 2.927 1.982
5 19 48 39.16 -80 24 29.90 5.20 (2.4 ± 1.3) x 10-3 14 2.332 1.896
6 19 49 48.51 -80 26 31.45 4.72 (3 ± 2) x 10-3 21 3.041 1.870
7 19 52 18.62 -80 26 40.34 4.88 (2.3 ± 1.3) x 10-3 20 3.092 1.825
8 19 51 07.43 -80 27 20.26 5.05 (2.0 ± 1.1) x 10-3 22 3.041 1.716
9 19 49 21.70 -80 25 26.46 4.61 (3 ± 2) x 10-3 23 2.510 1.655
10 19 52 18.62 -80 26 40.34 4.88 (1.8 ± 1.1) x 10-3 19 2.365 1.542
11 19 51 07.43 -80 27 20.26 5.05 (1.5 ± 1.0) x 10-3 22 2.750 1.499
12 19 50 19.69 -80 26 06.09 4.60 (2 ± 2) x 10-3 22 2.796 1.305
13 19 50 10.42 -80 26 41.49 4.69 (1.2 ± 1.0) x 10-3 19 2.300 1.117
14 19 50 44.00 -80 26 40.92 4.56 (1 ± 2) x 10-3 19 2.300 0.972
15 19 49 26.05 -80 25 34.98 4.51 (1.0 ± 1.2) x 10-3 22 2.699 0.854
16 19 51 00.39 -80 27 01.50 4.71 N/A 22 2.695 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1951.3-8015 Swift-XRT image with known radio, optical and UV sources for 4FGL J1951.3-8015


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 SUMSS J195049-801554 19 50 49.01 -80 15 55.08 1.46 SUMSS
2 SUMSS J195009-801154 19 50 09.00 -80 11 54.96 4.62 SUMSS
3 PMN J1954-8015 19 54 47.59 -80 15 15.84 8.74 PMN
4 GLEAM J195506-801504 19 55 06.70 -80 15 03.96 9.56 GLEAMEGCAT
SUMSS J195506-801506 19 55 06.91 -80 15 06.12 9.56 SUMSS
QORG J195507.6-801505 19 55 07.61 -80 15 05.04 9.59 QORGCAT
5 PPM 378370 19 47 31.37 -80 13 06.96 9.99 PPM
CD-80 726 19 47 30.91 -80 13 05.88 10.02 ACRS
6 SUMSS J195304-800617 19 53 04.61 -80 06 18.00 10.09 SUMSS
7 SUMSS J194648-801704 19 46 48.31 -80 17 03.84 11.65 SUMSS
8 PGC 228624 19 54 31.01 -80 04 42.96 13.39 PGC2003

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