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 J2125.6+0458

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2125.6+0458 Swift-XRT detections in the field for 4FGL J2125.6+0458


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 21 24 21.97 +05 01 23.42 9.56 (1.2 ± 0.5) x 10-2 7 2.403 2.646

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2125.6+0458 Swift-XRT image with known radio, optical and UV sources for 4FGL J2125.6+0458


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 FIRST J212548.4+045725 21 25 48.50 +04 57 25.92 2.97 FIRST
2 NVSS J212538+050222 21 25 38.21 +05 02 21.84 3.68 NVSS
FIRST J212538.2+050225 21 25 38.30 +05 02 25.08 3.72 FIRST
3 BD+04 4669 21 25 20.78 +04 56 35.16 4.71 ACRS
SAO 126785 21 25 20.78 +04 56 34.80 4.72 HIC
PPM 171726 21 25 20.78 +04 56 34.44 4.72 PPM
HIP 105774 21 25 20.74 +04 56 34.08 4.73 HIPPARCOS
SAO 126785 21 25 20.71 +04 56 34.44 4.73 SAO
4 PGC 1274646 21 25 27.79 +04 52 37.92 6.55 PGC2003
5 FIRST J212601.2+045502 21 26 01.20 +04 55 03.00 6.90 FIRST
GLEAM J212601+045457 21 26 01.20 +04 54 57.96 6.94 GLEAMEGCAT
TGSSADR J212559.1+045407 21 25 59.21 +04 54 06.84 7.04 GMRTAS150M
FIRST J212559.1+045405 21 25 59.21 +04 54 05.04 7.06 FIRST
VLSSr J212600.3+045426 21 26 00.29 +04 54 27.00 7.06 VLSSR
6 NVSS J212559+045406 21 25 59.30 +04 54 06.12 7.07 NVSS
QORG J212600.4+045420 21 26 00.41 +04 54 20.16 7.14 QORGCAT
7 PGC 1277536 21 25 16.39 +05 03 32.04 7.18 PGC2003
8 NVSS J212602+045441 21 26 02.59 +04 54 41.04 7.39 NVSS
FIRST J212602.1+045416 21 26 02.21 +04 54 15.84 7.53 FIRST
TGSSADR J212603.2+045438 21 26 03.29 +04 54 38.16 7.56 GMRTAS150M
FIRST J212603.5+045437 21 26 03.50 +04 54 37.08 7.61 FIRST
9 NVSS J212550+050653 21 25 50.81 +05 06 52.92 8.82 NVSS
10 NVSS J212505+050416 21 25 05.90 +05 04 17.04 9.69 NVSS
FIRST J212506.0+050419 21 25 06.00 +05 04 19.92 9.70 FIRST
11 PGC 1276628 21 24 56.59 +05 00 10.08 10.34 PGC2003
12 NVSS J212617+050224 21 26 17.11 +05 02 24.00 10.50 NVSS
13 PGC 1274760 21 26 14.90 +04 53 08.88 10.80 PGC2003
TGSSADR J212526.9+050945 21 25 27.00 +05 09 45.00 11.37 GMRTAS150M
FIRST J212526.9+050945 21 25 27.00 +05 09 46.08 11.39 FIRST
14 NVSS J212527+050947 21 25 27.00 +05 09 47.16 11.40 NVSS
15 NVSS J212617+050641 21 26 17.59 +05 06 42.12 12.76 NVSS
PGC 66754 21 26 17.71 +05 06 48.96 12.85 PGC2003
GLEAM J212457+050753 21 24 57.31 +05 07 53.04 13.62 GLEAMEGCAT
FIRST J212456.1+050754 21 24 56.11 +05 07 54.12 13.86 FIRST
TGSSADR J212456.0+050754 21 24 56.11 +05 07 54.84 13.88 GMRTAS150M
16 NVSS J212456+050757 21 24 56.11 +05 07 58.08 13.91 NVSS
17 NVSS J212450+044951 21 24 50.11 +04 49 50.88 14.78 NVSS

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