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.

4FGL J2058.5-1833

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2058.5-1833 Swift-XRT detections in the field for 4FGL J2058.5-1833

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 58 36.59 -18 31 01.97 4.83 (5.2 ± 1.0) x 10-3 43 5.485 5.381
2 20 59 16.66 -18 34 38.29 5.05 (3.2 ± 0.8) x 10-3 29 4.580 4.125
3 20 58 58.85 -18 31 35.12 6.21 (1.9 ± 0.6) x 10-3 17 3.166 3.170

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 20 58 37.51 -18 26 57.35 5.82 (1.5 ± 0.6) x 10-3 17 2.721 2.712
2 20 59 04.12 -18 29 32.96 5.59 (1.2 ± 0.5) x 10-3 21 2.718 2.231
3 20 58 02.23 -18 36 37.34 5.59 (1.0 ± 0.5) x 10-3 20 2.504 2.163

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2058.5-1833 Swift-XRT image with known radio, optical and UV sources for 4FGL J2058.5-1833

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1WGA J2058.6-1830 20 58 36.60 -18 30 44.64 3.15 ROSAT
2RXP J205837.1-183044 20 58 37.06 -18 30 44.28 3.17 ROSAT
2 2RXS J205838.9-183037 20 58 38.98 -18 30 37.80 3.35 ROSAT
2RXS J205838.9-183037 20 58 38.98 -18 30 37.80 3.35 ROSAT
3 1WGA J2058.0-1836 20 58 03.19 -18 36 54.36 8.27 ROSAT
4 1WGA J2059.2-1834 20 59 16.80 -18 34 02.28 9.74 ROSAT
5 1WGA J2057.9-1839 20 57 59.11 -18 39 50.76 10.52 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 QORG J205837.2-183050 20 58 37.20 -18 30 50.04 3.08 QORGCAT
GLEAM J205847-183226 20 58 47.59 -18 32 26.88 3.16 GLEAMEGCAT
2 NVSS J205848-183225 20 58 48.79 -18 32 25.08 3.44 NVSS
3 NVSS J205812-182955 20 58 12.31 -18 29 56.04 6.81 NVSS
4 HD 358685 20 58 13.03 -18 40 27.84 8.49 HDEC
PPM 238161 20 58 13.03 -18 40 27.84 8.49 PPM
5 HD 358683 20 58 35.52 -18 42 41.04 8.80 HDEC
6 PGC 867990 20 58 12.19 -18 27 05.04 8.80 PGC2003
7 NVSS J205839-184239 20 58 40.01 -18 42 38.88 8.83 NVSS
QORG J205909.3-182931 20 59 09.31 -18 29 30.84 9.08 QORGCAT
8 NVSS J205909-182932 20 59 09.50 -18 29 33.00 9.11 NVSS
9 NVSS J205819-182536 20 58 19.10 -18 25 36.84 9.17 NVSS
QORG J205904.4-182725 20 59 04.39 -18 27 24.84 9.39 QORGCAT
10 NVSS J205904-182724 20 59 04.51 -18 27 24.12 9.41 NVSS
11 NVSS J205758-182943 20 57 58.30 -18 29 43.08 9.81 NVSS
12 NVSS J205850-184347 20 58 50.30 -18 43 46.92 10.48 NVSS
GLEAM J205915-182820 20 59 15.91 -18 28 19.92 11.04 GLEAMEGCAT
13 NVSS J205915-182815 20 59 15.79 -18 28 15.96 11.05 NVSS
TGSSADR J205915.8-182813 20 59 15.91 -18 28 13.08 11.08 GMRTAS150M
WISH B2056.4-1839 20 59 15.70 -18 28 06.96 11.10 WISH
14 PGC 866454 20 59 22.61 -18 34 27.12 11.13 PGC2003
15 PGC 866481 20 59 25.99 -18 34 22.08 11.93 PGC2003
16 NVSS J205803-184329 20 58 03.79 -18 43 30.00 12.23 NVSS
17 PGC 864746 20 59 16.10 -18 42 15.84 12.72 PGC2003
18 PGC 864568 20 59 23.59 -18 43 08.04 14.63 PGC2003

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