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 J1858.3-1318

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1858.3-1318 Swift-XRT detections in the field for 4FGL J1858.3-1318


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 58 20.68 -13 11 20.71 6.78 (2.0 ± 1.0) x 10-3 10 2.440 2.037

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1858.3-1318 Swift-XRT image with known radio, optical and UV sources for 4FGL J1858.3-1318


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 J185759.5-131706 18 57 59.59 -13 17 06.00 5.02 GMRTAS150M
1 NVSS J185759-131706 18 57 59.40 -13 17 07.08 5.06 NVSS
WISH B1855.1-1320B 18 57 58.80 -13 16 54.12 5.26 WISH
2 QORG J185756.7-131647 18 57 56.71 -13 16 46.92 5.79 QORGCAT
3 NVSS J185757-131600 18 57 57.79 -13 16 00.12 5.88 NVSS
WISH B1855.1-1320 18 57 56.21 -13 16 09.84 6.14 WISH
4 751- 20 18 58 26.93 -13 12 41.04 6.42 NLTT
TGSSADR J185753.4-131619 18 57 53.40 -13 16 19.92 6.69 GMRTAS150M
5 NVSS J185753-131618 18 57 53.21 -13 16 18.12 6.76 NVSS
WISH B1855.1-1320A 18 57 53.30 -13 16 13.08 6.76 WISH
6 NVSS J185844-132222 18 58 44.59 -13 22 23.16 7.19 NVSS
7 WISH B1855.7-1331 18 58 35.50 -13 27 39.96 9.73 WISH
8 NVSS J185835-132819 18 58 36.00 -13 28 19.92 10.38 NVSS
TGSSADR J185836.0-132819 18 58 36.10 -13 28 18.84 10.38 GMRTAS150M
9 V485 Sct 18 57 40.73 -13 13 34.68 10.68 GCVS
10 PPM 719916 18 57 43.56 -13 26 48.12 11.75 PPM
TGSSADR J185857.0-132616 18 58 57.10 -13 26 17.16 11.90 GMRTAS150M
11 NVSS J185857-132622 18 58 57.10 -13 26 21.84 11.96 NVSS
WISH B1856.1-1330 18 58 57.19 -13 26 34.08 12.11 WISH
12 PPM 235285 18 57 40.06 -13 30 36.36 15.13 PPM

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