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 J0245.0+4755

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0245.0+4755 Swift-XRT detections in the field for 4FGL J0245.0+4755

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 02 44 33.18 +47 58 48.45 5.44 (3.8 ± 1.1) x 10-3 20 3.701 3.574
2 02 44 47.35 +47 47 37.11 5.64 (3.4 ± 1.0) x 10-3 19 3.430 3.455
3 02 44 54.49 +47 51 37.02 5.28 (3.6 ± 1.0) x 10-3 31 3.912 3.449

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 02 43 50.13 +47 57 30.72 5.05 (2.2 ± 0.9) x 10-3 26 3.259 2.475
2 02 45 40.47 +47 51 34.33 5.96 (1.8 ± 0.8) x 10-3 16 2.524 2.387
3 02 44 34.32 +47 51 38.13 5.35 (1.8 ± 0.8) x 10-3 17 2.678 2.231

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0245.0+4755 Swift-XRT image with known radio, optical and UV sources for 4FGL J0245.0+4755

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J024433.4+475908 02 44 33.41 +47 59 08.16 6.46 ROSAT
2RXS J024433.4+475908 02 44 33.41 +47 59 08.88 6.47 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
QORG J024449.9+475719 02 44 49.90 +47 57 19.08 3.18 QORGCAT
1 NVSS J024449+475721 02 44 49.80 +47 57 21.96 3.22 NVSS
2 NVSS J024451+474955 02 44 51.31 +47 49 54.84 5.64 NVSS
TGSSADR J024451.1+474955 02 44 51.19 +47 49 55.92 5.64 GMRTAS150M
WN 0241.4+4737 02 44 51.19 +47 49 54.12 5.66 WENSS
3 PGC 2305276 02 44 42.10 +47 50 09.96 6.18 PGC2003
4 NVSS J024545+475420 02 45 45.19 +47 54 20.16 6.99 NVSS
TGSSADR J024545.8+475422 02 45 45.91 +47 54 23.04 7.09 GMRTAS150M
TGSSADR J024510.9+474808 02 45 10.90 +47 48 09.00 7.11 GMRTAS150M
5 NVSS J024510+474806 02 45 10.99 +47 48 06.12 7.16 NVSS
WN 0241.8+4735 02 45 10.99 +47 48 03.96 7.20 WENSS
6 NVSS J024418+475128 02 44 18.70 +47 51 28.08 8.42 NVSS
7 V986 Per 02 44 37.58 +48 03 56.16 9.82 GCVS
8 NVSS J024410+475051 02 44 10.30 +47 50 51.00 9.95 NVSS
9 PGC 3087484 02 44 30.00 +47 46 18.12 10.52 PGC2003
0241+4754 02 44 41.21 +48 07 04.08 12.49 NORTH6CM
10 NVSS J024553+480659 02 45 53.90 +48 06 59.04 14.50 NVSS
TGSSADR J024553.8+480700 02 45 53.81 +48 07 00.12 14.50 GMRTAS150M
WN 0242.5+4754 02 45 53.90 +48 07 05.16 14.57 WENSS
11 PGC 2303815 02 46 14.40 +47 45 20.16 15.39 PGC2003

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