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 J2142.6-2029

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2142.6-2029 Swift-XRT detections in the field for 3FGL J2142.6-2029

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 43 15.06 -20 25 36.63 5.64 (3.8 ± 1.2) x 10-3 16 3.337 3.269
2 21 42 06.91 -20 30 26.24 5.17 (3.6 ± 1.2) x 10-3 25 3.460 3.058

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 42 50.55 -20 22 12.26 6.12 (2.9 ± 1.1) x 10-3 15 2.670 2.758
2 21 42 52.85 -20 43 44.16 6.52 (2.4 ± 0.9) x 10-3 9 2.450 2.728
3 21 42 39.93 -20 28 29.38 5.70 (3.2 ± 1.2) x 10-3 22 2.520 2.640
4 21 42 54.00 -20 40 02.99 5.64 (3.1 ± 1.2) x 10-3 14 2.745 2.631
5 21 42 27.40 -20 34 31.47 5.44 (2.7 ± 1.1) x 10-3 23 2.508 2.576
6 21 42 55.18 -20 23 12.00 5.96 (2.6 ± 1.0) x 10-3 14 2.481 2.556
7 21 42 21.09 -20 41 50.12 6.78 (2.2 ± 0.9) x 10-3 10 2.343 2.527
8 21 42 14.35 -20 23 15.66 5.02 (2.6 ± 1.1) x 10-3 18 2.813 2.412

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2142.6-2029 Swift-XRT image with known radio, optical and UV sources for 3FGL J2142.6-2029

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J214239.9-202829 21 42 40.10 -20 28 29.28 1.56 XMM-NEWTON
XMMSL2 J214239.9-202829 21 42 40.10 -20 28 29.28 1.56 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J214240-202822 21 42 40.10 -20 28 23.16 1.65 NVSS
WISH B2139.3-2034 21 42 10.20 -20 20 31.92 11.36 WISH
2 NVSS J214210-202025 21 42 10.10 -20 20 25.08 11.47 NVSS
TGSSADR J214209.9-202020 21 42 10.01 -20 20 21.12 11.55 GMRTAS150M
3 GLEAM J214207-202009 21 42 07.30 -20 20 09.96 12.06 GLEAMEGCAT
WISH B2140.3-2053 21 43 10.20 -20 39 21.96 12.15 WISH
4 NVSS J214310-203932 21 43 10.30 -20 39 32.04 12.30 NVSS
GLEAM J214310-203934 21 43 10.80 -20 39 34.92 12.40 GLEAMEGCAT
5 NVSS J214203-201957 21 42 04.01 -20 19 57.00 12.70 NVSS
TGSSADR J214204.1-201951 21 42 04.20 -20 19 51.96 12.74 GMRTAS150M
6 NVSS J214318-203828 21 43 18.10 -20 38 29.04 12.79 NVSS
7 WISH B2139.2-2032 21 42 04.01 -20 19 17.04 13.23 WISH
8 NVSS J214151-203919 21 41 51.91 -20 39 20.16 14.24 NVSS
GLEAM J214155-201842 21 41 55.10 -20 18 42.84 14.98 GLEAMEGCAT
9 NVSS J214154-201836 21 41 54.60 -20 18 37.08 15.14 NVSS
TGSSADR J214154.4-201834 21 41 54.50 -20 18 33.84 15.18 GMRTAS150M
WISH B2139.0-2030B 21 41 54.41 -20 18 34.92 15.19 WISH

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