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 J2358.6-1809

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J2358.6-1809 Swift-XRT detections in the field for 3FGL J2358.6-1809

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 58 36.75 -18 07 17.89 3.73 (7.0 ± 0.4) x 10-2 365 18.210 18.060
2 23 57 56.17 -18 00 58.82 5.28 (5.0 ± 1.0) x 10-3 31 5.010 4.968
3 23 57 46.81 -17 58 03.00 7.97 (2.5 ± 0.7) x 10-3 6 2.166 3.873
4 23 59 24.30 -18 09 52.51 6.41 (2.7 ± 0.8) x 10-3 16 3.391 3.603
5 23 58 28.27 -18 15 23.73 5.82 (2.3 ± 0.7) x 10-3 18 3.042 3.120

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 23 58 57.34 -18 07 58.62 6.93 (1.8 ± 0.7) x 10-3 10 2.546 2.665
2 23 57 59.50 -18 11 15.68 6.12 (1.7 ± 0.7) x 10-3 16 2.623 2.523
3 23 59 23.98 -18 05 04.23 6.21 (1.6 ± 0.7) x 10-3 14 2.654 2.513
4 23 57 59.36 -17 59 25.95 6.04 (1.9 ± 0.8) x 10-3 12 2.627 2.410

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2358.6-1809 Swift-XRT image with known radio, optical and UV sources for 3FGL J2358.6-1809

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J235836.8-180721 23 58 36.89 -18 07 21.36 2.27 ROSAT
2RXS J235836.8-180721 23 58 36.89 -18 07 21.36 2.27 ROSAT
1RXS J235836.3-180701 23 58 36.31 -18 07 01.56 2.62 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J235836-180718 23 58 37.01 -18 07 18.12 2.31 NVSS
[SPT2015] ATCA J2358-1807 23 58 36.89 -18 07 18.12 2.33 FER2FUSRID
[PME2013] J2358-1807 23 58 36.79 -18 07 15.96 2.35 AT2FGLUS
GLEAM J235820-181615 23 58 20.40 -18 16 14.88 8.16 GLEAMEGCAT
2 NVSS J235820-181621 23 58 20.11 -18 16 21.00 8.29 NVSS
WISH B2355.7-1833 23 58 19.61 -18 16 23.16 8.38 WISH
3 NVSS J235814-180245 23 58 15.00 -18 02 45.96 8.96 NVSS
TGSSADR J235815.2-180235 23 58 15.19 -18 02 35.16 9.06 GMRTAS150M
4 NVSS J235853-180046 23 58 53.50 -18 00 47.16 9.32 NVSS
VLSSr J235815.9-180152 23 58 15.89 -18 01 53.04 9.51 VLSSR
MWACS J2358.2-1801 23 58 15.10 -18 01 59.16 9.54 MWACS
TGSSADR J235805.4-180428 23 58 05.40 -18 04 28.92 9.60 GMRTAS150M
2355-183 23 58 15.00 -18 01 54.12 9.63 MRC
5 NVSS J235805-180428 23 58 05.21 -18 04 27.84 9.64 NVSS
GLEAM J235815-180147 23 58 15.10 -18 01 48.00 9.69 GLEAMEGCAT
WISH B2355.6-1818C 23 58 14.71 -18 01 46.92 9.76 WISH
6 NVSS J235814-180145 23 58 14.81 -18 01 45.84 9.77 NVSS
WISH B2355.6-1818B 23 58 04.61 -18 04 23.88 9.79 WISH
TXS 2355-183 23 58 14.59 -18 01 45.12 9.81 TEXAS
TGSSADR J235814.7-180142 23 58 14.81 -18 01 42.96 9.81 GMRTAS150M
GLEAM J235804-180421 23 58 04.39 -18 04 22.08 9.87 GLEAMEGCAT
7 NVSS J235920-181216 23 59 20.71 -18 12 16.92 10.11 NVSS
8 PMN J2358-1801 23 58 12.19 -18 01 46.92 10.14 PMN
TGSSADR J235923.2-180952 23 59 23.21 -18 09 51.84 10.32 GMRTAS150M
PKS J2358-1801 23 58 11.81 -18 01 33.96 10.36 PKSCAT90
WISH B2355.6-1818 23 58 12.00 -18 01 30.00 10.39 WISH
PKS 2355-183 23 58 11.30 -18 01 26.04 10.55 DIXON
9 WISH B2356.8-1826 23 59 24.41 -18 09 24.12 10.60 WISH
10 NVSS J235924-180954 23 59 24.50 -18 09 55.08 10.62 NVSS
11 NVSS J235911-181702 23 59 11.50 -18 17 03.12 10.65 NVSS
MWACS J2359.4-1809 23 59 24.70 -18 09 43.92 10.66 MWACS
TGSSADR J235924.2-180802 23 59 24.31 -18 08 02.04 10.66 GMRTAS150M
GLEAM J235924-180941 23 59 24.70 -18 09 42.12 10.67 GLEAMEGCAT
VLSSr J235924.8-181000 23 59 24.79 -18 10 00.84 10.70 VLSSR
12 NVSS J235924-180800 23 59 24.41 -18 08 00.96 10.71 NVSS
WISH B2356.6-1833 23 59 11.59 -18 17 15.00 10.81 WISH
TGSSADR J235925.3-180953 23 59 25.30 -18 09 54.00 10.82 GMRTAS150M
GLEAM J235911-181714 23 59 12.00 -18 17 15.00 10.87 GLEAMEGCAT
13 NVSS J235915-180236 23 59 15.31 -18 02 36.96 10.90 NVSS
14 NVSS J235803-180220 23 58 04.01 -18 02 21.12 11.13 NVSS
15 SPASS J235806-180127 23 58 07.01 -18 01 27.84 11.21 SPASS2P3GH
16 NVSS J235926-180449 23 59 26.71 -18 04 49.08 12.08 NVSS
17 NVSS J235921-180212 23 59 21.70 -18 02 12.12 12.35 NVSS
18 NVSS J235756-180054 23 57 56.11 -18 00 55.08 13.48 NVSS
TGSSADR J235759.8-175935 23 57 59.81 -17 59 35.88 13.73 GMRTAS150M
GLEAM J235759-175927 23 57 59.59 -17 59 26.88 13.88 GLEAMEGCAT
19 NVSS J235759-175924 23 57 59.21 -17 59 25.08 13.97 NVSS
WISH B2355.6-1818A 23 57 59.11 -17 59 21.12 14.03 WISH
VLSSr J235758.9-175919 23 57 58.90 -17 59 18.96 14.08 VLSSR
TGSSADR J235758.3-175909 23 57 58.30 -17 59 09.96 14.29 GMRTAS150M
20 NVSS J235924-181952 23 59 24.60 -18 19 51.96 14.84 NVSS
GLEAM J235925-181957 23 59 25.39 -18 19 57.00 15.04 GLEAMEGCAT
WISH B2356.8-1836 23 59 24.60 -18 20 16.08 15.12 WISH

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