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 J0237.8+5238

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0237.8+5238 Swift-XRT detections in the field for 4FGL J0237.8+5238


No detected excesses found.

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0237.8+5238 Swift-XRT image with known radio, optical and UV sources for 4FGL J0237.8+5238


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 PGC 2797400 02 37 56.30 +52 38 17.16 0.45 PGC2003
2 PGC 2797398 02 37 55.10 +52 41 04.92 3.01 PGC2003
3 OD+557.6 02 38 01.61 +52 34 58.08 3.34 DIXON
4 [SPT2015] VLA J0237+5241 02 37 43.90 +52 41 49.92 4.03 FER2FUSRID
5 NVSS J023834+523352 02 38 34.99 +52 33 51.84 7.56 NVSS
6 SAO 23482 02 37 48.74 +52 48 45.72 10.71 SAO
PPM 27811 02 37 48.72 +52 48 46.44 10.72 PPM
BD+52 602 02 37 48.70 +52 48 46.80 10.73 ACRS
7 NVSS J023845+524557 02 38 45.60 +52 45 56.88 11.14 NVSS
TGSSADR J023845.6+524557 02 38 45.70 +52 45 56.88 11.15 GMRTAS150M
WN 0235.2+5233 02 38 45.10 +52 46 05.16 11.18 WENSS
8 NVSS J023721+524919 02 37 21.00 +52 49 19.92 12.28 NVSS
9 PGC 2797428 02 39 04.99 +52 26 39.12 15.76 PGC2003

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