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.

1FGL J0251.5+5634

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0251.5+5634 Swift-XRT detections in the field for 1FGL J0251.5+5634

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 02 50 47.49 +56 29 34.53 4.10 (3.0 ± 0.3) x 10-2 119 10.890 10.250

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0251.5+5634 Swift-XRT image with known radio, optical and UV sources for 1FGL J0251.5+5634

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J025046.7+562939 02 50 46.70 +56 29 39.12 8.17 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J025144+563259 02 51 44.59 +56 32 60.00 2.51 NVSS
2 NVSS J025141+563804 02 51 41.90 +56 38 04.92 3.48 NVSS
WN 0248.5+5622 02 52 12.50 +56 34 55.92 5.52 WENSS
3 NVSS J025213+563503 02 52 13.70 +56 35 03.12 5.69 NVSS
WN 0248.1+5627 02 51 49.51 +56 40 09.84 5.81 WENSS
4 NVSS J025149+564016 02 51 49.70 +56 40 17.04 5.93 NVSS
5 NVSS J025205+563028 02 52 05.59 +56 30 28.08 6.33 NVSS
WN 0247.6+5615 02 51 21.79 +56 27 48.96 7.18 WENSS
6 NVSS J025121+562736 02 51 21.00 +56 27 37.08 7.41 NVSS
7 NVSS J025047+562935 02 50 47.71 +56 29 35.16 8.11 NVSS
GB6 J0250+5629 02 50 48.60 +56 29 26.16 8.11 GB6
WN 0247.0+5617 02 50 47.30 +56 29 35.88 8.14 WENSS
QORG J025046.2+562935 02 50 46.20 +56 29 35.16 8.27 QORGCAT
8 NVSS J025050+564228 02 50 50.30 +56 42 28.08 9.56 NVSS
WN 0247.1+5630 02 50 50.40 +56 42 29.88 9.58 WENSS
9 0247+5631 02 50 53.30 +56 43 30.00 10.18 NORTH6CM
10 PPM 28030 02 50 13.08 +56 36 54.72 11.11 PPM
SAO 23645 02 50 13.08 +56 36 54.72 11.11 SAO
BD+56 723 02 50 13.01 +56 36 54.00 11.12 ACRS
11 NVSS J025008+563502 02 50 08.30 +56 35 03.12 11.59 NVSS
12 WDS J02507+5645 02 50 42.00 +56 45 00.00 12.28 WDS
13 BD+56 721 02 50 06.67 +56 40 10.92 12.94 ACRS
PPM 28029 02 50 06.65 +56 40 10.92 12.94 PPM
WDS J02501+5640 02 50 06.00 +56 40 00.12 12.95 WDS
SAO 23644 02 50 06.60 +56 40 11.64 12.95 SAO
14 NVSS J025014+562650 02 50 14.21 +56 26 51.00 13.43 NVSS
QORG J025037.8+562325 02 50 37.80 +56 23 25.08 13.70 QORGCAT
15 NVSS J025038+562321 02 50 38.11 +56 23 21.84 13.72 NVSS
WN 0246.9+5611 02 50 37.30 +56 23 24.00 13.75 WENSS
7C 024657.6+561053 02 50 38.59 +56 23 15.00 13.77 GP7C151MHZ

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