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 J0747.5-4927

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J0747.5-4927 Swift-XRT detections in the field for 3FGL J0747.5-4927

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 07 47 24.78 -49 26 33.99 4.21 (2.9 ± 0.3) x 10-2 109 9.980 9.923
2 07 47 16.93 -49 31 39.26 5.70 (7 ± 2) x 10-3 26 4.700 4.531
3 07 48 18.68 -49 29 27.16 5.82 (4.9 ± 1.2) x 10-3 21 4.175 3.902
4 07 47 07.07 -49 23 09.57 6.21 (3.5 ± 1.1) x 10-3 17 3.150 3.239

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 07 47 07.07 -49 23 09.57 6.21 (2.0 ± 0.9) x 10-3 18 2.312 2.189

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J0747.5-4927 Swift-XRT image with known radio, optical and UV sources for 3FGL J0747.5-4927

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J074724.6-492632 07 47 25.22 -49 26 34.44 1.64 XMM-NEWTON
XMMSL2 J074724.6-492632 07 47 25.49 -49 26 30.12 1.65 XMM-NEWTON
1RXS J074725.1-492626 07 47 25.10 -49 26 26.16 1.74 ROSAT
2RXS J074725.1-492625 07 47 25.13 -49 26 25.44 1.74 ROSAT
XMMSL2 J074724.6-492632 07 47 24.60 -49 26 31.56 1.75 XMM-NEWTON
XMMSL2 J074724.6-492632 07 47 24.48 -49 26 33.00 1.75 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J074724-492634 07 47 24.41 -49 26 34.08 1.75 SUMSS
2 SUMSS J074714-492316 07 47 13.99 -49 23 17.16 5.29 SUMSS
3 SUMSS J074829-492356 07 48 29.40 -49 23 56.04 9.76 SUMSS
TGSSADR J074829.4-492352 07 48 29.40 -49 23 53.16 9.78 GMRTAS150M
GLEAM J074829-492348 07 48 29.50 -49 23 48.84 9.82 GLEAMEGCAT
4 SUMSS J074713-493710 07 47 13.80 -49 37 10.92 10.19 SUMSS
5 GLEAM J074721-493737 07 47 21.19 -49 37 36.84 10.31 GLEAMEGCAT
6 TGSSADR J074724.3-493746 07 47 24.31 -49 37 45.84 10.38 GMRTAS150M
SUMSS J074724-493750 07 47 24.31 -49 37 50.16 10.44 SUMSS
7 SUMSS J074625-491755 07 46 25.99 -49 17 56.04 14.58 SUMSS
GLEAM J074626-491750 07 46 26.30 -49 17 49.92 14.60 GLEAMEGCAT
TGSSADR J074625.9-491753 07 46 25.90 -49 17 53.88 14.60 GMRTAS150M

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