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 J1727.7-2637

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J1727.7-2637 Swift-XRT detections in the field for 3FGL J1727.7-2637


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 17 28 13.91 -26 36 23.02 7.97 (4 ± 2) x 10-3 8 2.180 2.164

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1727.7-2637 Swift-XRT image with known radio, optical and UV sources for 3FGL J1727.7-2637


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
1 NSV 22066 17 27 52.01 -26 37 18.84 1.14 GCVSNSVARS
2 NVSS J172744-263525 17 27 44.81 -26 35 26.16 2.14 NVSS
MGPS J172748-264046 17 27 48.60 -26 40 45.84 3.29 MGPS2
3 NVSS J172748-264100 17 27 48.60 -26 40 59.88 3.52 NVSS
4 NSV 22042 17 27 37.10 -26 33 38.16 4.46 GCVSNSVARS
5 NSV 8731 17 28 07.90 -26 38 26.16 4.76 GCVSNSVARS
6 NSV 22026 17 27 28.51 -26 31 55.92 6.94 GCVSNSVARS
7 NVSS J172717-264143 17 27 17.59 -26 41 44.16 7.81 NVSS
8 NSV 22015 17 27 21.79 -26 32 02.04 7.85 GCVSNSVARS
MGPS J172717-264150 17 27 17.40 -26 41 49.92 7.90 MGPS2
9 NVSS J172746-264525 17 27 46.30 -26 45 24.84 7.92 NVSS
10 MGPS J172815-264325 17 28 15.79 -26 43 24.96 8.74 MGPS2
11 NSV 22118 17 28 25.70 -26 35 52.08 8.81 GCVSNSVARS
MGPS J172714-263127 17 27 14.30 -26 31 27.12 9.49 MGPS2
12 NVSS J172713-263117 17 27 13.99 -26 31 18.12 9.65 NVSS
13 NSV 22018 17 27 24.50 -26 47 56.04 11.57 GCVSNSVARS
14 NSV 21983 17 27 00.60 -26 42 41.04 11.59 GCVSNSVARS
15 NSV 21977 17 26 57.41 -26 42 51.84 12.31 GCVSNSVARS
16 MGPS J172653-264040 17 26 53.50 -26 40 40.08 12.37 MGPS2

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