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 J2045.6+2455

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2045.6+2455 Swift-XRT detections in the field for 4FGL J2045.6+2455

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 45 54.89 +24 53 52.21 6.04 (3.5 ± 1.1) x 10-3 17 3.091 3.038

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 20 45 56.85 +25 00 49.58 7.09 (2.0 ± 0.9) x 10-3 9 2.266 2.282

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2045.6+2455 Swift-XRT image with known radio, optical and UV sources for 4FGL J2045.6+2455


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 WDS J20459+2456 20 45 54.00 +24 55 59.88 3.47 WDS
2 NVSS J204519+245424 20 45 19.39 +24 54 24.84 4.53 NVSS
3 HD 341087 20 45 58.80 +24 55 57.36 4.54 HDEC
4 HD 341089 20 45 51.70 +24 51 32.40 4.81 HDEC
5 HD 341090 A 20 45 35.35 +24 50 11.76 5.25 HDEC
6 NVSS J204518+245252 20 45 18.50 +24 52 53.04 5.26 NVSS
HD 341090 B 20 45 35.69 +24 50 08.16 5.30 HDEC
7 WDS J20460+2453 20 46 00.00 +24 52 59.88 5.34 WDS
8 WDS J20455+2450 20 45 30.00 +24 49 59.88 5.75 WDS
9 HD 341088 20 46 03.36 +24 53 14.28 5.94 HDEC
10 NVSS J204519+245127 20 45 19.20 +24 51 28.08 5.95 NVSS
11 HD 341081 20 45 30.17 +25 01 18.48 6.25 HDEC
12 2043+2449 20 45 55.20 +25 00 33.84 6.37 NORTH6CM
13 NVSS J204600+245049 20 46 00.29 +24 50 48.84 6.65 NVSS
GB6 J2045+2500 20 45 56.50 +25 00 46.08 6.69 GB6
TGSSADR J204557.3+250049 20 45 57.41 +25 00 50.04 6.86 GMRTAS150M
14 NVSS J204557+250051 20 45 57.41 +25 00 51.12 6.89 NVSS
15 HD 341091 20 45 39.36 +24 48 08.64 7.24 HDEC
16 NVSS J204504+245120 20 45 04.01 +24 51 20.88 8.89 NVSS
17 HD 341092 20 45 18.50 +24 47 19.68 9.30 HDEC
18 NVSS J204544+244501 20 45 44.81 +24 45 02.16 10.44 NVSS
19 HD 341098 20 46 04.51 +24 46 25.32 10.68 HDEC
PPM 111839 20 46 04.51 +24 46 25.32 10.68 PPM
BD+24 4236 20 46 04.56 +24 46 25.68 10.68 ACRS
20 NVSS J204621+244940 20 46 21.79 +24 49 41.16 11.27 NVSS
PGC 140913 20 46 21.79 +24 49 39.00 11.29 PGC2003
21 NVSS J204512+250506 20 45 12.79 +25 05 06.00 11.38 NVSS
22 WDS J20464+2501 20 46 24.00 +25 01 00.12 11.66 WDS
23 2044+2438 20 46 24.17 +24 49 43.68 11.72 ZCAT
24 WDS J20453+2444 20 45 18.00 +24 43 59.88 12.34 WDS
25 WDS J20448+2500 20 44 48.00 +25 00 00.00 12.43 WDS
HD 341080 B 20 44 48.55 +25 00 22.68 12.46 HDEC
HD 341080 A 20 44 48.31 +25 00 26.28 12.54 HDEC
26 HD 341082 20 46 21.58 +25 05 11.04 13.76 HDEC
27 WDS J20465+2506 AC 20 46 30.00 +25 06 00.00 15.70 WDS
WDS J20465+2506 AB 20 46 30.00 +25 06 00.00 15.70 WDS
28 WDS J20448+2444 AC 20 44 48.00 +24 43 59.88 16.22 WDS
WDS J20448+2444 AB 20 44 48.00 +24 43 59.88 16.22 WDS

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