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 J1827.7+1141

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1827.7+1141 Swift-XRT detections in the field for 3FGL J1827.7+1141


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 18 27 26.92 +11 51 09.82 6.52 (3.5 ± 1.2) x 10-3 12 2.974 2.924
2 18 27 12.83 +11 47 12.81 6.41 (2.9 ± 1.1) x 10-3 10 2.624 2.595
3 18 27 36.67 +11 56 28.66 6.65 (2.2 ± 0.9) x 10-3 11 2.267 2.391
4 18 28 09.71 +11 52 51.37 6.21 (1.7 ± 0.9) x 10-3 14 2.526 1.877

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1827.7+1141 Swift-XRT image with known radio, optical and UV sources for 3FGL J1827.7+1141


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 NVSS J182745+114434 18 27 45.29 +11 44 34.08 2.85 NVSS
2 NVSS J182727+114507 18 27 28.01 +11 45 06.84 4.78 NVSS
3 NVSS J182721+114840 18 27 21.70 +11 48 41.04 8.48 NVSS
4 NVSS J182817+113909 18 28 17.50 +11 39 09.00 9.07 NVSS
5 NVSS J182724+115007 18 27 24.41 +11 50 08.16 9.36 NVSS
[SPT2015] VLA J1827+1150 18 27 24.19 +11 50 08.88 9.41 FER2FUSRID
6 NVSS J182815+113625 18 28 15.70 +11 36 25.92 9.84 NVSS
7 NVSS J182824+114547 18 28 24.60 +11 45 47.16 11.13 NVSS
8 NVSS J182747+115315 18 27 47.50 +11 53 15.00 11.51 NVSS
9 NVSS J182831+114020 18 28 31.10 +11 40 19.92 12.08 NVSS
10 NVSS J182704+113342 18 27 04.01 +11 33 42.84 12.36 NVSS
11 NVSS J182822+113406 18 28 22.30 +11 34 06.96 12.51 NVSS

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