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 J1635.4-3249

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1635.4-3249 Swift-XRT detections in the field for 4FGL J1635.4-3249


No detected excesses found.

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 35 41.36 -32 56 44.73 9.05 (5 ± 2) x 10-3 6 2.207 2.200

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1635.4-3249 Swift-XRT image with known radio, optical and UV sources for 4FGL J1635.4-3249

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J163539.4-324316 16 35 39.48 -32 43 16.68 7.05 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 OS-355 16 36 01.90 -32 51 06.12 7.64 DIXON
PKS J1635-3256 16 35 58.80 -32 56 17.88 9.50 PKSCAT90
PKS1632-328 16 35 58.30 -32 56 29.04 9.56 DIXON
MGPS J163559-325621 16 35 58.99 -32 56 21.12 9.57 MGPS2
2 NVSS J163559-325623 16 35 59.11 -32 56 22.92 9.60 NVSS
TXS 1632-328 16 35 59.21 -32 56 22.92 9.61 TEXAS
1632-328 16 35 59.40 -32 56 20.04 9.61 MRC
TGSSADR J163559.1-325624 16 35 59.11 -32 56 24.00 9.62 GMRTAS150M
3 NVSS J163559-325738 16 35 59.40 -32 57 38.16 10.55 NVSS
4 PPM 747869 16 35 09.38 -32 38 52.44 11.42 PPM
5 NVSS J163527-323811 16 35 27.29 -32 38 11.04 11.55 NVSS
6 NVSS J163439-325603 16 34 39.89 -32 56 03.84 11.58 NVSS
MGPS J163439-325602 16 34 39.79 -32 56 02.04 11.59 MGPS2
TGSSADR J163439.8-325605 16 34 39.79 -32 56 06.00 11.60 GMRTAS150M
TXS 1631-328 16 34 39.70 -32 56 03.84 11.61 TEXAS
7 PPM 295201 16 34 30.91 -32 50 53.88 11.64 PPM
CD-3211813 16 34 30.91 -32 50 54.24 11.65 ACRS
SAO 207783 16 34 30.72 -32 50 53.88 11.69 SAO
8 SAO 207809 16 36 04.68 -32 40 05.52 12.61 SAO
CD-3211839 16 36 04.75 -32 40 04.44 12.63 ACRS
PPM 295229 16 36 04.78 -32 40 04.08 12.64 PPM
9 NVSS J163621-325837 16 36 21.50 -32 58 36.84 14.64 NVSS
TGSSADR J163621.7-325837 16 36 21.70 -32 58 37.92 14.68 GMRTAS150M
MGPS J163621-325843 16 36 21.60 -32 58 42.96 14.72 MGPS2

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