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 J1622.2-7202

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1622.2-7202 Swift-XRT detections in the field for 4FGL J1622.2-7202

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 21 37.06 -71 52 28.75 4.22 (2.1 ± 0.2) x 10-2 94 9.466 8.842
2 16 21 34.73 -72 08 55.77 4.66 (10 ± 2) x 10-3 49 6.505 6.022

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 16 22 16.97 -72 02 50.19 6.52 (2.8 ± 1.0) x 10-3 16 2.704 2.907
2 16 21 21.55 -72 03 12.96 6.12 (2.6 ± 1.0) x 10-3 20 2.496 2.592
3 16 19 37.98 -71 53 30.91 7.48 (1.6 ± 0.7) x 10-3 8 2.311 2.387
4 16 23 38.10 -71 56 01.23 6.41 (1.6 ± 0.7) x 10-3 9 2.363 2.289
5 16 21 22.34 -72 08 11.88 4.88 (1.6 ± 1.0) x 10-3 13 2.602 1.720

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1622.2-7202 Swift-XRT image with known radio, optical and UV sources for 4FGL J1622.2-7202

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
2RXS J162135.6-720848 16 21 35.64 -72 08 48.48 7.02 ROSAT
2RXS J162135.6-720848 16 21 35.64 -72 08 48.48 7.02 ROSAT
1 XMMSL2 J162136.7-720912 16 21 36.79 -72 09 11.88 7.34 XMM-NEWTON
XMMSL2 J162136.7-720912 16 21 36.79 -72 09 11.88 7.34 XMM-NEWTON
2 XMMSL2 J162136.7-715239 16 21 36.60 -71 52 39.00 10.14 XMM-NEWTON
XMMSL2 J162136.7-715239 16 21 36.60 -71 52 39.00 10.14 XMM-NEWTON
2RXS J162132.0-715243 16 21 32.06 -71 52 42.96 10.17 ROSAT
2RXS J162132.0-715243 16 21 32.06 -71 52 42.96 10.17 ROSAT
1RXS J162131.9-715241 16 21 31.90 -71 52 41.52 10.20 ROSAT
1RXS J162131.9-715241 16 21 31.90 -71 52 41.16 10.21 ROSAT
XMMSL2 J162136.7-715239 16 21 38.83 -71 52 29.28 10.25 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 PPM 786855 16 22 51.26 -72 07 22.08 5.80 PPM
2 SUMSS J162233-715648 16 22 33.50 -71 56 48.84 5.81 SUMSS
3 SUMSS J162053-720555 16 20 53.59 -72 05 54.96 7.03 SUMSS
4 PPM 786856 16 22 58.97 -72 09 45.00 8.17 PPM
5 PPM 373054 16 23 02.28 -71 55 06.60 8.24 PPM
CD-71 1257 16 23 02.28 -71 55 06.60 8.24 ACRS
HD 146584 16 23 02.26 -71 55 06.24 8.24 HIC
HIP 80255 16 23 02.30 -71 55 05.88 8.25 HIPPARCOS
6 NSV 20591 16 23 43.70 -72 07 55.92 8.93 GCVSNSVARS
7 SAO 257389 16 21 37.27 -71 52 27.12 10.31 SAO
HD 146310 16 21 37.30 -71 52 26.04 10.33 HIC
HIP 80152 16 21 37.51 -71 52 25.68 10.33 HIPPARCOS
CD-71 1255 16 21 37.42 -71 52 25.68 10.33 ACRS
PPM 373041 16 21 37.42 -71 52 25.68 10.33 PPM
8 SUMSS J162052-715401 16 20 52.51 -71 54 02.16 10.41 SUMSS
9 PMN J1624-7208 16 24 13.01 -72 08 58.92 11.36 PMN
10 GLEAM J162018-715501 16 20 18.60 -71 55 01.92 11.49 GLEAMEGCAT
SUMSS J162016-715500 16 20 16.30 -71 55 00.84 11.64 SUMSS
11 PGC 266763 16 23 40.80 -71 52 14.16 12.24 PGC2003
12 SUMSS J162429-720906 16 24 29.40 -72 09 06.12 12.47 SUMSS
GLEAM J162430-720907 16 24 30.00 -72 09 07.92 12.53 GLEAMEGCAT
13 SUMSS J162026-715237 16 20 26.81 -71 52 37.92 12.75 SUMSS
14 WDS J16206-7213 16 20 36.00 -72 13 00.12 12.94 WDS
15 SUMSS J162356-715214 16 23 56.30 -71 52 14.88 12.94 SUMSS
GLEAM J162356-715211 16 23 56.21 -71 52 10.92 12.98 GLEAMEGCAT
CD-71 1254 16 20 36.53 -72 13 25.68 13.27 ACRS
16 SUMSS J162037-721359 16 20 37.70 -72 13 59.16 13.69 SUMSS

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