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 J2131.1-6625

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2131.1-6625 Swift-XRT detections in the field for 3FGL J2131.1-6625

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 32 37.48 -66 24 25.40 5.76 (4.9 ± 1.3) x 10-3 20 3.931 3.681

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 21 31 38.23 -66 32 11.59 6.31 (2.6 ± 1.0) x 10-3 13 2.823 2.654
2 21 29 52.31 -66 32 35.78 7.09 (2.3 ± 0.9) x 10-3 11 2.382 2.528
3 21 31 21.34 -66 30 10.58 6.21 (2.1 ± 0.9) x 10-3 12 2.379 2.231
4 21 30 52.73 -66 18 22.69 5.49 (2.2 ± 1.0) x 10-3 16 2.630 2.205
5 21 30 06.22 -66 30 46.95 6.21 (1.8 ± 0.9) x 10-3 10 2.579 2.079

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2131.1-6625 Swift-XRT image with known radio, optical and UV sources for 3FGL J2131.1-6625


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 SUMSS J213055-662627 21 30 55.30 -66 26 27.96 2.05 SUMSS
2 GLEAM J213039-662349 21 30 39.50 -66 23 48.84 3.26 GLEAMEGCAT
SUMSS J213038-662356 21 30 38.71 -66 23 56.04 3.29 SUMSS
3 SUMSS J213028-663217 21 30 28.99 -66 32 17.16 8.34 SUMSS
4 PMN J2132-6624 21 32 37.20 -66 24 34.92 8.75 PMN
SUMSS J213237-662428 21 32 37.30 -66 24 28.08 8.77 SUMSS
ATPMN J213237.4-662430 21 32 37.39 -66 24 29.88 8.78 ATPMNCAT
ATPMN J213237.4-662426 21 32 37.39 -66 24 25.92 8.78 ATPMNCAT
GLEAM J213237-662423 21 32 37.70 -66 24 23.04 8.81 GLEAMEGCAT
2128-666 21 32 37.99 -66 24 28.08 8.84 MRC
SPASS J213239-662411 21 32 39.00 -66 24 11.88 8.96 SPASS2P3GH
5 SUMSS J213001-661911 21 30 01.70 -66 19 12.00 8.97 SUMSS
6 SUMSS J213149-663618 21 31 49.51 -66 36 19.08 11.97 SUMSS

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