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 J1240.3-7149

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1240.3-7149 Swift-XRT detections in the field for 3FGL J1240.3-7149

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 12 40 21.34 -71 48 58.32 3.57 (3.13 ± 0.09) x 10-1 1361 34.180 35.630

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 39 31.12 -71 57 52.51 6.31 (2.6 ± 0.9) x 10-3 14 2.702 2.844
2 12 39 37.05 -71 54 19.20 6.41 (2.5 ± 0.9) x 10-3 15 2.852 2.842
3 12 41 34.51 -71 50 47.19 5.89 (2.5 ± 0.9) x 10-3 17 3.106 2.703
4 12 38 22.64 -71 46 06.27 6.41 (1.6 ± 0.8) x 10-3 10 2.296 2.163
5 12 40 21.31 -71 48 58.38 3.57 (2.0 ± 1.2) x 10-3 1354 3.067 1.652
6 12 40 21.33 -71 48 58.23 3.57 N/A 1356 2.453 N/A
7 12 40 21.33 -71 48 58.22 3.57 N/A 1354 2.615 N/A

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1240.3-7149 Swift-XRT image with known radio, optical and UV sources for 3FGL J1240.3-7149

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J124015.2-714859 12 40 15.19 -71 48 59.40 0.61 ROSAT
2RXS J124015.3-714858 12 40 15.31 -71 48 58.68 0.62 ROSAT
2 XMMSL2 J124021.7-714852 12 40 21.77 -71 48 52.56 0.72 XMM-NEWTON
3 2RXS J123839.4-714018 12 38 39.48 -71 40 18.12 12.06 ROSAT
4 1RXS J123827.5-713959 12 38 27.50 -71 39 59.04 12.92 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J124021-714901 12 40 21.29 -71 49 01.92 0.56 MGPS2
[SPT2015] ATCA J1240-7148 12 40 21.19 -71 49 00.12 0.59 FER2FUSRID
[PME2013] J1240-7148 12 40 21.19 -71 49 00.12 0.59 AT2FGLUS
2 MGPS J123828-715501 12 38 28.30 -71 55 01.92 10.18 MGPS2
3 MGPS J123928-715900 12 39 28.90 -71 58 59.88 10.21 MGPS2
4 MGPS J123750-715008 12 37 50.30 -71 50 08.16 11.57 MGPS2

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