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 J2134.5-2131

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2134.5-2131 Swift-XRT detections in the field for 3FGL J2134.5-2131

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 35 04.47 -21 38 21.69 6.12 (4.5 ± 1.1) x 10-3 20 3.735 4.112
2 21 34 29.34 -21 30 33.43 5.44 (2.6 ± 0.8) x 10-3 24 3.271 3.395
3 21 33 51.72 -21 35 29.66 5.70 (2.3 ± 0.7) x 10-3 16 3.226 3.296

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 35 04.87 -21 27 41.79 6.21 (1.6 ± 0.6) x 10-3 12 2.453 2.695
2 21 34 31.76 -21 30 47.71 5.44 (1.9 ± 0.7) x 10-3 30 2.766 2.683
3 21 35 05.65 -21 29 22.91 6.41 (1.4 ± 0.6) x 10-3 12 2.508 2.526
4 21 33 46.27 -21 28 31.15 5.59 (1.2 ± 0.5) x 10-3 17 2.478 2.397
5 21 34 34.29 -21 20 54.79 5.44 (1.4 ± 0.6) x 10-3 16 2.477 2.336
6 21 34 08.69 -21 24 41.64 5.44 (1.3 ± 0.6) x 10-3 16 2.451 2.207

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2134.5-2131 Swift-XRT image with known radio, optical and UV sources for 3FGL J2134.5-2131

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 SWIFT J213433.6-213103 21 34 33.70 -21 31 03.36 0.41 SWIFT
2 1RXS J213355.5-213731 21 33 55.51 -21 37 31.44 11.12 ROSAT
2RXS J213355.5-213736 21 33 55.58 -21 37 36.12 11.14 ROSAT
2RXS J213355.5-213736 21 33 55.58 -21 37 36.12 11.14 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J213430-213032 21 34 30.19 -21 30 32.04 1.38 NVSS
[SPT2015] ATCA J2134-2130 21 34 30.19 -21 30 30.96 1.39 FER2FUSRID
[PME2013] J2134-2130 21 34 30.19 -21 30 30.96 1.39 AT2FGLUS
GLEAM J213419-212951 21 34 19.01 -21 29 51.00 4.01 GLEAMEGCAT
2 NVSS J213418-212949 21 34 18.70 -21 29 49.92 4.08 NVSS
WISH B2131.4-2143 21 34 18.31 -21 29 39.12 4.25 WISH
3 NVSS J213407-213504 21 34 07.61 -21 35 03.84 7.42 NVSS
4 NVSS J213428-214105 21 34 28.30 -21 41 04.92 9.91 NVSS
5 NVSS J213459-212305 21 35 00.00 -21 23 04.92 10.04 NVSS
GLEAM J213519-213127 21 35 19.70 -21 31 27.84 10.37 GLEAMEGCAT
6 WISH B2132.5-2144 21 35 19.80 -21 30 50.04 10.40 WISH
7 NVSS J213520-213139 21 35 20.11 -21 31 39.00 10.46 NVSS
TGSSADR J213520.0-213136 21 35 20.11 -21 31 36.12 10.47 GMRTAS150M
8 NVSS J213353-213529 21 33 53.50 -21 35 29.04 10.54 NVSS
9 NVSS J213344-212631 21 33 44.30 -21 26 31.92 12.74 NVSS
WISH B2130.9-2133 21 33 43.61 -21 20 26.88 16.18 WISH

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