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 J2355.5-6614

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2355.5-6614 Swift-XRT detections in the field for 4FGL J2355.5-6614

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 54 11.62 -66 18 38.48 5.82 (6 ± 2) x 10-3 17 3.386 3.127

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 54 51.02 -66 10 20.00 5.24 (5 ± 2) x 10-3 22 3.088 2.919
2 23 55 22.07 -66 18 37.53 6.12 (3.5 ± 1.3) x 10-3 18 2.642 2.613
3 23 54 33.76 -66 08 36.08 5.59 (3.5 ± 1.4) x 10-3 16 2.609 2.455
4 23 54 07.89 -66 03 18.51 5.70 (2.6 ± 1.2) x 10-3 13 2.623 2.138

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2355.5-6614 Swift-XRT image with known radio, optical and UV sources for 4FGL J2355.5-6614


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PPM 366696 23 55 20.14 -66 13 37.56 1.45 PPM
CD-66 2655 23 55 20.14 -66 13 37.20 1.45 ACRS
2 SUMSS J235554-661136 23 55 54.60 -66 11 35.88 3.24 SUMSS
GLEAM J235554-661131 23 55 54.00 -66 11 31.92 3.26 GLEAMEGCAT
3 GLEAM J235605-661839 23 56 05.59 -66 18 39.96 5.60 GLEAMEGCAT
SUMSS J235604-661844 23 56 04.90 -66 18 43.92 5.62 SUMSS
4 SUMSS J235517-660805 23 55 17.90 -66 08 04.92 6.19 SUMSS
5 PGC 307525 23 56 02.40 -66 05 40.92 8.87 PGC2003
6 PGC 305462 23 54 37.10 -66 21 03.96 9.02 PGC2003
7 GLEAM J235343-661424 23 53 43.99 -66 14 24.00 11.07 GLEAMEGCAT
[PME2013] J2353-6614 23 53 43.10 -66 14 30.84 11.16 AT2FGLUS
[SPT2015] ATCA J2353-6614 23 53 43.10 -66 14 30.84 11.16 FER2FUSRID
SUMSS J235342-661427 23 53 42.79 -66 14 27.96 11.19 SUMSS
8 SUMSS J235722-660753 23 57 22.70 -66 07 54.12 12.61 SUMSS
QORG J235723.6-660745 23 57 23.59 -66 07 45.12 12.76 QORGCAT
9 GLEAM J235728-660743 23 57 28.30 -66 07 44.04 13.19 GLEAMEGCAT
10 PGC 307665 23 57 12.79 -66 04 44.04 13.69 PGC2003

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