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 J1624.3-3952

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1624.3-3952 Swift-XRT detections in the field for 4FGL J1624.3-3952

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 23 29.33 -39 58 00.43 4.18 (3.0 ± 0.3) x 10-2 100 10.140 9.324
2 16 23 51.51 -39 59 21.83 6.65 (3.8 ± 1.2) x 10-3 13 3.181 3.171

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 23 26.93 -40 02 48.92 7.48 (3.5 ± 1.2) x 10-3 11 2.849 2.923

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1624.3-3952 Swift-XRT image with known radio, optical and UV sources for 4FGL J1624.3-3952

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXP J162333.6-395806 16 23 33.55 -39 58 05.88 11.43 ROSAT
2RXS J162330.1-395806 16 23 30.17 -39 58 06.60 11.99 ROSAT
1RXS J162330.1-395806 16 23 30.10 -39 58 05.88 12.00 ROSAT
1RXS J162330.1-395806 16 23 30.10 -39 58 05.88 12.00 ROSAT
RX J1623.5-3958 16 23 29.59 -39 58 00.48 12.03 ROSAT
HD 147402 16 23 29.59 -39 58 00.48 12.03 ROSAT
2 XMMSL2 J162329.4-395801 16 23 29.28 -39 58 00.84 12.09 XMM-NEWTON
2RXP J162329.0-395800 16 23 28.94 -39 57 59.76 12.14 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J162431-395124 16 24 31.49 -39 51 24.12 1.57 NVSS
2 PGCC G341.12+6.73 16 24 02.40 -39 52 57.00 4.25 PLANCKGCC
3 NVSS J162421-395657 16 24 21.41 -39 56 57.84 4.99 NVSS
PMN J1625-3951 16 25 02.81 -39 51 00.00 7.52 PMN
MGPS J162504-395118 16 25 04.51 -39 51 19.08 7.81 MGPS2
4 NVSS J162504-395121 16 25 04.61 -39 51 20.88 7.82 NVSS
5 NVSS J162407-394328 16 24 07.10 -39 43 28.92 9.11 NVSS
6 NVSS J162453-394348 16 24 53.40 -39 43 49.08 9.95 NVSS
7 NVSS J162417-394204 16 24 17.69 -39 42 03.96 10.00 NVSS
MGPS J162417-394203 16 24 17.50 -39 42 02.88 10.02 MGPS2
TGSSADR J162417.6-394202 16 24 17.69 -39 42 02.16 10.04 GMRTAS150M
8 NVSS J162518-395115 16 25 18.91 -39 51 15.12 10.56 NVSS
9 NVSS J162450-394216 16 24 50.90 -39 42 16.92 11.01 NVSS
10 PGCC G341.18+6.51 16 25 05.40 -39 59 44.88 11.09 PLANCKGCC
11 NVSS J162328-394649 16 23 28.90 -39 46 50.16 11.77 NVSS
12 PPM 294997 16 23 29.57 -39 58 00.84 12.04 PPM
V1099 Sco 16 23 29.54 -39 58 00.84 12.04 GCVS
13 PPM 295040 16 25 22.08 -39 57 23.04 12.37 PPM
14 NVSS J162518-400040 16 25 18.00 -40 00 41.04 13.52 NVSS

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