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 J2247.7-5857

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2247.7-5857 Swift-XRT detections in the field for 4FGL J2247.7-5857

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 22 47 44.79 -58 54 56.57 4.37 (1.7 ± 0.2) x 10-2 78 7.971 7.968
2 22 46 45.93 -58 49 28.61 6.12 (3.2 ± 1.0) x 10-3 15 3.591 3.379
3 22 49 19.20 -58 57 07.50 6.93 (2.9 ± 0.9) x 10-3 13 3.193 3.363
4 22 49 12.57 -58 58 44.45 6.52 (3.8 ± 1.1) x 10-3 14 3.352 3.355

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 01.73 -58 53 58.02 6.93 (2.1 ± 0.9) x 10-3 10 2.305 2.359
2 22 47 52.93 -58 53 47.14 5.82 (1.3 ± 1.0) x 10-3 17 2.423 1.342

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2247.7-5857 Swift-XRT image with known radio, optical and UV sources for 4FGL J2247.7-5857

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J224747.4-585444 22 47 47.42 -58 54 44.64 2.70 ROSAT
2RXS J224747.4-585444 22 47 47.42 -58 54 44.64 2.70 ROSAT
1RXS J224747.3-585444 22 47 47.30 -58 54 43.92 2.70 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J224745-585457 22 47 45.00 -58 54 57.96 2.44 SUMSS
2 PGC 375581 22 47 52.51 -58 53 26.88 4.11 PGC2003
3 PGC 375701 22 47 24.19 -58 52 22.08 5.61 PGC2003
4 PGC 374839 22 46 59.71 -58 59 15.00 5.94 PGC2003
5 PGC 374858 22 48 30.10 -58 59 06.00 6.25 PGC2003
6 SUMSS J224822-590307 22 48 22.70 -59 03 06.84 7.64 SUMSS
7 PGC 374089 22 47 29.90 -59 04 57.00 7.76 PGC2003
8 PGC 376239 22 47 55.99 -58 48 15.12 9.28 PGC2003
9 PGC 374575 22 48 58.70 -59 01 13.08 10.42 PGC2003
10 PGC 375036 22 49 11.21 -58 57 48.96 11.32 PGC2003
11 PGC 375910 22 46 12.19 -58 50 45.96 13.52 PGC2003
12 SAO 247595 22 49 00.24 -59 08 42.36 15.02 SAO
PPM 350547 22 49 00.53 -59 08 41.28 15.03 PPM
CD-59 8019 22 49 00.50 -59 08 41.64 15.03 ACRS

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