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 J2133.1-6432

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2133.1-6432 Swift-XRT detections in the field for 4FGL J2133.1-6432

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 33 11.19 -64 38 19.86 4.14 (1.3 ± 0.2) x 10-2 106 9.688 9.027
2 21 33 22.79 -64 34 42.28 5.31 (1.8 ± 0.5) x 10-3 26 3.236 3.350

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 33 39.69 -64 40 44.26 5.31 (1.0 ± 0.4) x 10-3 18 2.671 2.337
2 21 33 03.47 -64 37 37.08 4.16 (1.0 ± 0.7) x 10-3 29 2.516 1.577

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2133.1-6432 Swift-XRT image with known radio, optical and UV sources for 4FGL J2133.1-6432

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J213135.7-643840 21 31 35.69 -64 38 40.20 12.03 XMM-NEWTON
XMMSL2 J213135.7-643840 21 31 35.69 -64 38 40.20 12.03 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PGC 322050 21 33 23.71 -64 30 21.96 2.38 PGC2003
2 [SPT2015] ATCA J2133-6435 21 33 20.71 -64 35 08.88 3.05 FER2FUSRID
[PME2013] J2133-6435 21 33 20.71 -64 35 08.88 3.05 AT2FGLUS
SUMSS J213320-643512 21 33 20.50 -64 35 12.84 3.09 SUMSS
3 PGC 66950 21 33 10.99 -64 38 20.04 6.04 PGC2003
ESO 212913-6451.7 21 33 12.24 -64 38 24.00 6.10 ESOUPPSALA
Unknown 21 33 12.50 -64 38 24.00 6.11 RC3
4 164-162 21 32 58.61 -64 25 42.24 6.72 NLTT
5 PGC 321411 21 31 53.90 -64 33 55.08 8.42 PGC2003
6 GLEAM J213151-642956 21 31 51.10 -64 29 56.04 8.90 GLEAMEGCAT
SUMSS J213149-642956 21 31 49.99 -64 29 56.04 9.01 SUMSS
7 CD-65 2759 21 33 41.04 -64 41 49.56 10.06 ACRS
PPM 365251 21 33 41.04 -64 41 49.56 10.06 PPM
8 PGC 320139 21 33 51.79 -64 41 26.16 10.14 PGC2003
9 PGC 320978 21 34 43.80 -64 36 28.08 10.82 PGC2003
10 PGC 322656 21 31 45.10 -64 26 30.12 10.90 PGC2003
11 PGC 321399 21 35 00.91 -64 33 59.04 11.94 PGC2003
12 PGC 319729 21 32 52.51 -64 44 07.08 11.98 PGC2003
13 SUMSS J213414-644341 21 34 13.99 -64 43 41.16 13.25 SUMSS
14 PGC 322893 21 31 21.79 -64 25 01.92 13.81 PGC2003
15 PGC 320122 21 31 25.51 -64 41 30.12 14.56 PGC2003
16 PGC 319906 21 31 33.50 -64 43 03.00 14.98 PGC2003

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