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 J1624.2-3957

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1624.2-3957 Swift-XRT detections in the field for 3FGL J1624.2-3957

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 23 29.67 -39 58 02.09 4.18 (3.0 ± 0.3) x 10-2 102 9.617 9.418
2 16 23 27.23 -40 02 49.85 7.48 (4.0 ± 1.3) x 10-3 11 2.884 3.121
3 16 23 51.38 -39 59 19.92 6.52 (3.6 ± 1.2) x 10-3 14 3.044 3.027

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1624.2-3957 Swift-XRT image with known radio, optical and UV sources for 3FGL J1624.2-3957

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 8.14 ROSAT
2RXS J162330.1-395806 16 23 30.17 -39 58 06.60 8.79 ROSAT
1RXS J162330.1-395806 16 23 30.10 -39 58 05.88 8.80 ROSAT
1RXS J162330.1-395806 16 23 30.10 -39 58 05.88 8.80 ROSAT
RX J1623.5-3958 16 23 29.59 -39 58 00.48 8.89 ROSAT
HD 147402 16 23 29.59 -39 58 00.48 8.89 ROSAT
2 XMMSL2 J162329.4-395801 16 23 29.28 -39 58 00.84 8.95 XMM-NEWTON
2RXP J162329.0-395800 16 23 28.94 -39 57 59.76 9.01 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J162421-395657 16 24 21.41 -39 56 57.84 1.15 NVSS
2 NVSS J162431-395124 16 24 31.49 -39 51 24.12 6.71 NVSS
PMN J1625-3951 16 25 02.81 -39 51 00.00 11.04 PMN
TGSSADR J162439.2-400729 16 24 39.31 -40 07 28.92 11.04 GMRTAS150M
MGPS J162441-400720 16 24 41.40 -40 07 19.92 11.08 MGPS2
TGSSADR J162442.4-400715 16 24 42.41 -40 07 14.88 11.09 GMRTAS150M
3 NVSS J162504-395121 16 25 04.61 -39 51 20.88 11.13 NVSS
4 NVSS J162441-400723 16 24 41.50 -40 07 23.16 11.13 NVSS
MGPS J162504-395118 16 25 04.51 -39 51 19.08 11.14 MGPS2
5 NVSS J162518-400040 16 25 18.00 -40 00 41.04 12.35 NVSS
6 NVSS J162328-394649 16 23 28.90 -39 46 50.16 13.89 NVSS

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