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 J1708.8-0923

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1708.8-0923 Swift-XRT detections in the field for 4FGL J1708.8-0923


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 17 08 28.02 -09 31 30.20 6.31 (3.7 ± 1.3) x 10-3 16 2.966 2.848
2 17 09 13.84 -09 22 39.31 7.48 (2.2 ± 1.0) x 10-3 8 2.473 2.305

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1708.8-0923 Swift-XRT image with known radio, optical and UV sources for 4FGL J1708.8-0923

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2EGS J1708-0927 17 08 36.00 -09 28 00.12 5.13 MGGAMMACAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J170836-092546 17 08 36.31 -09 25 45.84 3.60 NVSS
2 PPM 200376 17 08 26.04 -09 25 43.32 5.82 PPM
3 GLEAM J170832-092925 17 08 32.11 -09 29 26.16 6.98 GLEAMEGCAT
4 NVSS J170909-092936 17 09 09.50 -09 29 36.96 7.96 NVSS
GLEAM J170816-092623 17 08 16.01 -09 26 24.00 8.37 GLEAMEGCAT
5 NVSS J170815-092639 17 08 15.79 -09 26 39.12 8.51 NVSS
6 NVSS J170828-091456 17 08 28.80 -09 14 56.04 9.93 NVSS
7 NVSS J170806-091711 17 08 06.60 -09 17 11.04 12.12 NVSS
8 NVSS J170814-091436 17 08 14.30 -09 14 35.88 12.31 NVSS
9 NVSS J170929-091637 17 09 29.21 -09 16 36.84 12.33 NVSS
10 NVSS J170810-091521 17 08 10.80 -09 15 20.88 12.38 NVSS
11 NVSS J170818-093353 17 08 18.50 -09 33 54.00 12.57 NVSS
WISH B1706.7-0928 17 09 27.10 -09 32 21.84 12.97 WISH
12 NVSS J170927-093222 17 09 27.41 -09 32 21.84 13.04 NVSS
TGSSADR J170927.3-093223 17 09 27.41 -09 32 24.00 13.04 GMRTAS150M
GLEAM J170927-093219 17 09 27.70 -09 32 20.04 13.06 GLEAMEGCAT
13 PPM 200389 17 09 27.36 -09 33 20.88 13.70 PPM

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