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 J1859.8+1545

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1859.8+1545 Swift-XRT detections in the field for 4FGL J1859.8+1545


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 59 42.48 +15 40 22.57 6.78 (2.8 ± 1.0) x 10-3 14 2.801 2.848

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1859.8+1545 Swift-XRT image with known radio, optical and UV sources for 4FGL J1859.8+1545


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 J190001+154456 19 00 01.20 +15 44 56.04 2.01 NVSS
2 NVSS J190005+154733 19 00 05.11 +15 47 34.08 3.12 NVSS
3 NVSS J185931+154525 18 59 31.99 +15 45 24.84 5.32 NVSS
4 NVSS J190010+154936 19 00 10.61 +15 49 36.84 5.42 NVSS
TGSSADR J190010.6+154939 19 00 10.61 +15 49 40.08 5.46 GMRTAS150M
5 BD+15 3650 19 00 03.94 +15 50 55.32 5.52 ACRS
PPM 135608 19 00 03.91 +15 50 55.68 5.52 PPM
6 NVSS J185920+155224 18 59 20.90 +15 52 23.88 10.25 NVSS
7 NVSS J185907+154222 18 59 07.01 +15 42 21.96 11.84 NVSS
TGSSADR J185942.4+153426 18 59 42.41 +15 34 26.04 11.84 GMRTAS150M
8 NVSS J185923+155523 18 59 23.90 +15 55 23.88 11.89 NVSS
TGSSADR J185923.8+155526 18 59 23.81 +15 55 27.12 11.94 GMRTAS150M
9 NVSS J185942+153420 18 59 42.19 +15 34 19.92 11.95 NVSS
10 NVSS J190043+154122 19 00 43.30 +15 41 21.84 12.73 NVSS

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