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 J1142.1-6941

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1142.1-6941 Swift-XRT detections in the field for 3FGL J1142.1-6941

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 11 43 21.62 -69 34 15.66 5.70 (7 ± 2) x 10-3 24 4.386 4.269
2 11 41 02.72 -69 41 37.82 6.12 (4.9 ± 1.4) x 10-3 19 3.484 3.558

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 11 40 19.95 -69 40 16.05 6.04 (3.9 ± 1.4) x 10-3 14 3.119 2.812
2 11 43 40.44 -69 37 08.50 7.48 (2.2 ± 1.0) x 10-3 10 2.329 2.302

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1142.1-6941 Swift-XRT image with known radio, optical and UV sources for 3FGL J1142.1-6941

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 3XMM J114009.0-694340 11 40 09.10 -69 43 40.80 10.61 XMM-NEWTON
2 3XMM J113950.5-694230 11 39 50.52 -69 42 30.24 11.99 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 MGPS J114221-695142 11 42 21.60 -69 51 42.12 10.69 MGPS2
2 PMN J1139-6942 11 39 56.81 -69 42 05.04 11.41 PMN
3 MGPS J113951-694233 11 39 51.50 -69 42 33.12 11.91 MGPS2

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