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.

3FGL J1517.0+2637

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J1517.0+2637 Swift-XRT detections in the field for 3FGL J1517.0+2637

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 15 16 49.82 +26 36 35.20 5.89 (7 ± 2) x 10-3 24 4.310 4.469

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 15 17 18.85 +26 43 35.55 6.78 (3.4 ± 1.2) x 10-3 11 2.798 2.807

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1517.0+2637 Swift-XRT image with known radio, optical and UV sources for 3FGL J1517.0+2637


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
TGSSADR J151702.5+263858 15 17 02.59 +26 38 57.84 1.21 GMRTAS150M
FIRST J151702.5+263858 15 17 02.59 +26 38 58.92 1.22 FIRST
1 NVSS J151702+263859 15 17 02.59 +26 38 60.00 1.23 NVSS
FIRST J151702.2+263907 15 17 02.21 +26 39 06.84 1.32 FIRST
2 FIRST J151652.9+263526 15 16 52.90 +26 35 26.88 2.97 FIRST
3 NVSS J151656+263338 15 16 56.81 +26 33 38.16 4.29 NVSS
4 NVSS J151634+263857 15 16 34.30 +26 38 57.12 6.03 NVSS
FIRST J151634.2+263852 15 16 34.20 +26 38 53.16 6.03 FIRST
5 FIRST J151732.8+264016 15 17 32.81 +26 40 17.04 7.56 FIRST
6 NVSS J151621+264148 15 16 21.41 +26 41 48.12 9.66 NVSS
FIRST J151620.9+264147 15 16 21.00 +26 41 47.04 9.74 FIRST
7 NVSS J151628+263028 15 16 28.70 +26 30 28.08 10.29 NVSS
FIRST J151628.0+263031 15 16 28.01 +26 30 30.96 10.35 FIRST
8 FIRST J151650.2+262721 15 16 50.21 +26 27 21.96 10.73 FIRST
9 FIRST J151719.2+262743 15 17 19.30 +26 27 42.84 10.92 FIRST
10 FIRST J151743.9+262959 15 17 43.99 +26 29 58.92 12.44 FIRST
11 NVSS J151745+262804 15 17 45.19 +26 28 04.08 13.93 NVSS
FIRST J151744.8+262753 15 17 44.90 +26 27 52.92 14.00 FIRST
12 FIRST J151614.2+264801 15 16 14.30 +26 48 02.16 14.56 FIRST
B2.2 1515+26 15 17 53.59 +26 48 11.16 15.70 DIXON
FIRST J151751.3+264850 15 17 51.41 +26 48 50.04 15.77 FIRST
GLEAM J151752+264830 15 17 52.80 +26 48 30.96 15.77 GLEAMEGCAT
1515+2659 15 17 52.51 +26 48 46.08 15.91 NORTH6CM
1515+2659 15 17 52.51 +26 48 46.08 15.91 NORTH20CM
13 NVSS J151753+264839 15 17 53.30 +26 48 38.88 15.96 NVSS
FIRST J151753.4+264838 15 17 53.40 +26 48 38.88 15.97 FIRST
TGSSADR J151753.3+264839 15 17 53.40 +26 48 38.88 15.97 GMRTAS150M
TXS 1515+269 15 17 53.40 +26 48 39.96 15.97 TEXAS
7C 151545.3+265934 15 17 53.40 +26 48 38.88 15.97 LD7C151MHZ
GB6 J1517+2648 15 17 53.30 +26 48 43.92 16.01 GB6
VLSSr J151753.3+264848 15 17 53.40 +26 48 48.96 16.07 VLSSR

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