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 J2249.9+0452

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2249.9+0452 Swift-XRT detections in the field for 4FGL J2249.9+0452

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 22 50 04.19 +04 42 36.79 4.90 (7.6 ± 1.3) x 10-3 41 6.000 5.798

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 22 49 26.51 +04 51 42.85 6.52 (1.8 ± 0.7) x 10-3 16 2.990 2.726
2 22 50 37.39 +04 48 47.92 6.65 (1.4 ± 0.6) x 10-3 11 2.578 2.259

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2249.9+0452 Swift-XRT image with known radio, optical and UV sources for 4FGL J2249.9+0452


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 NVSS J224956+045302 22 49 56.21 +04 53 02.04 0.89 NVSS
FIRST J224956.1+045302 22 49 56.21 +04 53 02.04 0.89 FIRST
2 PGC 85313 22 49 49.39 +04 53 33.00 2.23 PGC2003
TGSSADR J225007.2+045618 22 50 07.20 +04 56 17.88 4.95 GMRTAS150M
3 NVSS J225007+045617 22 50 07.30 +04 56 17.16 4.96 NVSS
FIRST J225007.3+045617 22 50 07.39 +04 56 17.16 4.96 FIRST
4 PPM 173472 22 49 42.60 +04 56 16.08 5.36 PPM
BD+04 4912 22 49 42.60 +04 56 16.44 5.36 ACRS
5 PGC 1276115 22 49 47.90 +04 58 15.96 6.47 PGC2003
6 PGC 1274118 22 49 25.20 +04 50 35.16 7.92 PGC2003
7 PGC 1272755 22 50 19.30 +04 45 06.84 9.06 PGC2003
8 PGC 1276043 22 49 27.70 +04 57 57.96 9.21 PGC2003
9 FIRST J224941.4+050114 22 49 41.50 +05 01 14.16 9.81 FIRST
10 NVSS J225023+044443 22 50 23.59 +04 44 43.08 10.07 NVSS
PGC 1272637 22 50 24.10 +04 44 40.92 10.17 PGC2003
FIRST J225024.1+044441 22 50 24.10 +04 44 40.92 10.18 FIRST
11 PGC 1276052 22 49 22.51 +04 57 59.04 10.26 PGC2003
12 NVSS J224937+050129 22 49 37.99 +05 01 28.92 10.40 NVSS
TGSSADR J224937.8+050129 22 49 37.90 +05 01 30.00 10.42 GMRTAS150M
FIRST J224937.7+050129 22 49 37.80 +05 01 30.00 10.43 FIRST
13 PGC 1273120 22 49 18.31 +04 46 33.96 11.01 PGC2003
14 FIRST J224956.1+044102 22 49 56.11 +04 41 03.12 11.11 FIRST
15 NVSS J224910+045008 22 49 10.01 +04 50 08.88 11.73 NVSS
FIRST J224909.9+045011 22 49 10.01 +04 50 11.04 11.73 FIRST
VLSSr J224913.6+045933 22 49 13.70 +04 59 33.00 12.95 VLSSR
FIRST J224913.4+045940 22 49 13.51 +04 59 39.84 13.07 FIRST
16 NVSS J224913+045939 22 49 13.39 +04 59 39.84 13.07 NVSS
TGSSADR J224913.4+045941 22 49 13.39 +04 59 40.92 13.08 GMRTAS150M
17 WDS J22506+0442 22 50 36.00 +04 42 00.00 14.16 WDS

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