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.

1FGL J2118.3-3237

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J2118.3-3237 Swift-XRT detections in the field for 1FGL J2118.3-3237

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 17 54.80 -32 43 27.61 4.55 (1.7 ± 0.2) x 10-2 60 7.627 7.169

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 17 52.71 -32 32 43.49 7.09 (2.8 ± 1.0) x 10-3 12 2.751 2.884
2 21 18 15.39 -32 37 31.31 7.71 (2.3 ± 1.0) x 10-3 10 2.657 2.451
3 21 18 29.87 -32 26 02.04 6.78 (3.4 ± 1.4) x 10-3 12 2.855 2.356

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J2118.3-3237 Swift-XRT image with known radio, optical and UV sources for 1FGL J2118.3-3237

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J211755.3-324325 21 17 55.30 -32 43 24.96 7.55 ROSAT
1RXS J211755.3-324325 21 17 55.30 -32 43 24.96 7.55 ROSAT
2RXS J211755.2-324325 21 17 55.25 -32 43 25.68 7.57 ROSAT
2RXS J211755.2-324325 21 17 55.25 -32 43 25.68 7.57 ROSAT
6dFGS J2117549-324328 21 17 54.91 -32 43 27.84 7.64 ROSAT
1RXS J211829.9-322615 21 18 29.90 -32 26 15.00 11.89 ROSAT
2RXS J211829.8-322614 21 18 29.86 -32 26 14.64 11.90 ROSAT
2RXS J211829.8-322614 21 18 29.86 -32 26 14.64 11.90 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J211811-323557 21 18 11.21 -32 35 57.84 2.74 NVSS
2 GLEAM J211814-324129 21 18 14.59 -32 41 29.04 3.71 GLEAMEGCAT
3 GLEAM J211803-323507 21 18 03.50 -32 35 07.08 4.51 GLEAMEGCAT
4 NVSS J211758-323431 21 17 58.51 -32 34 32.16 5.70 NVSS
5 NVSS J211808-323210 21 18 08.21 -32 32 11.04 6.31 NVSS
6 NVSS J211752-323533 21 17 52.30 -32 35 33.00 6.33 NVSS
GLEAM J211808-323207 21 18 08.21 -32 32 07.08 6.36 GLEAMEGCAT
SUMSS J211808-323204 21 18 08.11 -32 32 03.84 6.41 SUMSS
7 NVSS J211804-324334 21 18 04.70 -32 43 35.04 6.49 NVSS
GLEAM J211757-324331 21 17 57.00 -32 43 32.16 7.39 GLEAMEGCAT
8 NVSS J211754-324326 21 17 54.91 -32 43 27.12 7.62 NVSS
SUMSS J211754-324328 21 17 54.79 -32 43 28.92 7.67 SUMSS
9 NVSS J211819-322839 21 18 19.70 -32 28 39.00 9.31 NVSS
10 NVSS J211817-322716 21 18 17.71 -32 27 15.84 10.71 NVSS
TXS 2116-328 21 19 13.99 -32 40 17.04 11.57 TEXAS
GLEAM J211914-324008 21 19 14.30 -32 40 09.12 11.61 GLEAMEGCAT
TGSSADR J211914.2-324013 21 19 14.30 -32 40 14.16 11.63 GMRTAS150M
SUMSS J211914-324013 21 19 14.30 -32 40 14.16 11.63 SUMSS
11 NVSS J211914-324012 21 19 14.40 -32 40 13.08 11.65 NVSS
GLEAM J211724-323934 21 17 24.41 -32 39 34.92 11.83 GLEAMEGCAT
12 NVSS J211724-323931 21 17 24.31 -32 39 32.04 11.86 NVSS
TGSSADR J211724.2-323933 21 17 24.31 -32 39 33.12 11.86 GMRTAS150M
13 NVSS J211821-322605 21 18 21.60 -32 26 06.00 11.87 NVSS
SUMSS J211724-323933 21 17 24.10 -32 39 33.84 11.91 SUMSS
SUMSS J211916-323444 21 19 16.01 -32 34 44.04 12.21 SUMSS
14 NVSS J211916-323445 21 19 16.20 -32 34 45.12 12.23 NVSS
15 NVSS J211916-323138 21 19 16.30 -32 31 39.00 13.42 NVSS
SUMSS J211916-323132 21 19 16.39 -32 31 32.16 13.49 SUMSS
16 NVSS J211916-324502 21 19 16.70 -32 45 02.16 13.85 NVSS
GLEAM J211737-324833 21 17 37.51 -32 48 33.12 13.88 GLEAMEGCAT
TGSSADR J211737.3-324839 21 17 37.39 -32 48 39.96 13.98 GMRTAS150M
17 NVSS J211737-324846 21 17 37.30 -32 48 46.08 14.07 NVSS
SUMSS J211737-324850 21 17 37.20 -32 48 51.12 14.14 SUMSS

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