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 J0337.5+2423c

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0337.5+2423c Swift-XRT detections in the field for 4FGL J0337.5+2423c


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 03 37 43.41 +24 15 29.28 7.09 (3.5 ± 1.3) x 10-3 10 2.810 2.777
2 03 38 22.65 +24 25 23.57 7.09 (3.0 ± 1.1) x 10-3 11 2.861 2.713
3 03 37 31.66 +24 14 53.39 7.09 (2.5 ± 1.1) x 10-3 9 2.724 2.324

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0337.5+2423c Swift-XRT image with known radio, optical and UV sources for 4FGL J0337.5+2423c


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 W 1242 03 37 39.12 +24 23 18.24 1.07 NLTT
2 NVSS J033738+242035 03 37 39.00 +24 20 35.16 2.62 NVSS
3 NVSS J033745+242143 03 37 45.60 +24 21 42.84 2.82 NVSS
4 WDS J03378+2420 03 37 48.00 +24 19 59.88 4.29 WDS
5 NVSS J033753+242118 03 37 53.59 +24 21 18.00 4.66 NVSS
TGSSADR J033753.6+242115 03 37 53.59 +24 21 15.12 4.68 GMRTAS150M
6 PGCC G164.51-24.73 03 37 19.20 +24 27 09.00 5.41 PLANCKGCC
GLEAM J033712+242609 03 37 12.60 +24 26 09.96 5.92 GLEAMEGCAT
TGSSADR J033712.1+242606 03 37 12.19 +24 26 07.08 5.96 GMRTAS150M
VLSSr J033712.2+242608 03 37 12.19 +24 26 08.88 5.97 VLSSR
7 356-759 03 37 36.00 +24 17 00.60 6.02 NLTT
8 NVSS J033711+242608 03 37 12.00 +24 26 08.16 6.02 NVSS
9 SAO 76036 03 37 43.34 +24 15 33.12 7.73 SAO
PPM 92680 03 37 43.44 +24 15 33.12 7.73 PPM
BD+23 483 03 37 43.46 +24 15 33.12 7.74 ACRS
10 NVSS J033707+243102 03 37 07.39 +24 31 03.00 10.13 NVSS
11 NVSS J033827+242758 03 38 27.10 +24 27 59.04 12.94 NVSS

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