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.

3FGL J2056.3-5925

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J2056.3-5925 Swift-XRT detections in the field for 3FGL J2056.3-5925

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 56 24.39 -59 17 20.30 4.90 (4.7 ± 1.3) x 10-3 22 4.057 3.715
2 20 56 26.86 -59 16 22.10 4.92 (3.9 ± 1.1) x 10-3 30 4.592 3.467

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 55 34.12 -59 21 19.63 5.44 (1.9 ± 0.8) x 10-3 19 2.606 2.366
2 20 55 38.08 -59 22 07.16 5.53 (1.9 ± 0.9) x 10-3 20 2.464 2.115

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2056.3-5925 Swift-XRT image with known radio, optical and UV sources for 3FGL J2056.3-5925

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J205545.2-592050 20 55 45.22 -59 20 50.28 6.59 ROSAT
2RXS J205545.2-592050 20 55 45.22 -59 20 50.28 6.59 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J205614-592243 20 56 14.50 -59 22 44.04 2.81 SUMSS
2 SUMSS J205623-591731 20 56 23.40 -59 17 31.92 7.78 SUMSS
SPT-S J205624-5917.4 20 56 25.01 -59 17 27.96 7.85 SPTSZSPSC
3 SUMSS J205717-593437 20 57 17.81 -59 34 36.84 11.60 SUMSS
GLEAM J205718-593437 20 57 18.41 -59 34 37.92 11.65 GLEAMEGCAT
4 SUMSS J205539-591425 20 55 39.31 -59 14 26.16 12.24 SUMSS
5 GLEAM J205755-592946 20 57 55.39 -59 29 45.96 12.52 GLEAMEGCAT
SUMSS J205756-592945 20 57 56.21 -59 29 44.88 12.61 SUMSS

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