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 J1257.0-6338

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1257.0-6338 Swift-XRT detections in the field for 3FGL J1257.0-6338


No detected excesses found.

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 12 57 11.39 -63 27 52.34 6.31 (2.6 ± 0.9) x 10-3 12 2.910 2.870

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1257.0-6338 Swift-XRT image with known radio, optical and UV sources for 3FGL J1257.0-6338

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J1257.6-6339 12 57 41.21 -63 39 31.32 4.70 ROSAT
2 1WGA J1257.7-6338 12 57 43.39 -63 38 31.56 4.76 ROSAT
3 1WGA J1258.6-6339 12 58 36.10 -63 39 18.00 10.65 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PMN J1256-6333 12 56 41.81 -63 33 38.88 4.95 PMN
2 PCCS2 030 G303.46-00.72 12 56 13.30 -63 35 02.04 6.12 PCCS030GHZ
3 TD 303.4-00.8 12 56 02.30 -63 37 14.16 6.55 DIXON
4 PCCS2 070 G303.46-00.71 12 56 12.10 -63 34 18.84 6.62 PCCS070GHZ
5 PCCS2 044 G303.45-00.71 12 56 05.71 -63 34 41.16 7.02 PCCS044GHZ
6 MGPS J125804-633832 12 58 04.39 -63 38 33.00 7.09 MGPS2
7 TD 303.5-00.6 12 56 44.50 -63 30 14.04 8.11 DIXON
8 PMN J1257-6329 12 57 13.99 -63 29 47.04 8.48 PMN
9 AG G303.4-0.7 12 55 52.10 -63 32 30.84 9.48 DIXON
10 PMN J1255-6335 12 55 26.11 -63 35 27.96 10.84 PMN
11 MGPS J125756-634916 12 57 56.90 -63 49 15.96 12.75 MGPS2
12 MGPS J125532-634957 12 55 32.50 -63 49 57.00 15.32 MGPS2
13 MGPS J125840-632721 12 58 40.20 -63 27 21.96 15.46 MGPS2

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