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 J2008.4+1619

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2008.4+1619 Swift-XRT detections in the field for 4FGL J2008.4+1619

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 07 59.13 +16 09 58.29 3.77 (7.2 ± 0.5) x 10-2 294 17.770 16.060
2 20 08 27.77 +16 18 42.13 4.21 (2.8 ± 0.3) x 10-2 108 9.571 9.596

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2008.4+1619 Swift-XRT image with known radio, optical and UV sources for 4FGL J2008.4+1619

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J200817.1+161920 20 08 17.11 +16 19 20.28 2.22 ROSAT
2 1RXS J200801.0+161155 20 08 01.01 +16 11 54.96 9.56 ROSAT
2RXS J200759.4+160959 20 07 59.42 +16 09 59.04 11.33 ROSAT
HD 191179 20 07 59.23 +16 09 57.96 11.37 ROSAT
1RXS J200759.3+160955 20 07 59.30 +16 09 55.44 11.40 ROSAT
1RXS J200759.3+160955 20 07 59.30 +16 09 55.08 11.40 ROSAT
[GR2015] Sge 112 20 07 59.30 +16 09 52.92 11.43 ROSAT
3 XMMSL2 J200758.8+160958 20 07 58.75 +16 09 57.60 11.44 XMM-NEWTON
HD 191179 20 07 58.99 +16 09 54.00 11.46 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J200827+161846 20 08 27.70 +16 18 47.16 0.61 NVSS
2 NVSS J200840+161913 20 08 40.01 +16 19 13.08 3.29 NVSS
TGSSADR J200840.1+161913 20 08 40.20 +16 19 13.08 3.32 GMRTAS150M
3 HD 354930 20 08 20.35 +16 15 03.96 4.46 HDEC
4 HD 354919 20 08 12.62 +16 24 16.56 5.98 HDEC
5 HD 354786 20 07 57.19 +16 21 10.44 7.25 HDEC
6 WDS J20084+1627 20 08 24.00 +16 26 60.00 7.73 WDS
7 WDS J20079+1621 20 07 54.00 +16 21 00.00 7.95 WDS
8 NVSS J200854+161312 20 08 54.79 +16 13 12.00 9.14 NVSS
TGSSADR J200854.8+161311 20 08 54.79 +16 13 12.00 9.16 GMRTAS150M
9 BD+15 4053 20 07 59.26 +16 09 58.32 11.36 ACRS
PPM 137707 20 07 59.23 +16 09 57.96 11.37 PPM
SAO 105730 20 07 59.21 +16 09 57.96 11.38 SAO
10 NVSS J200835+163046 20 08 35.90 +16 30 47.16 11.71 NVSS
TGSSADR J200836.1+163047 20 08 36.10 +16 30 47.16 11.74 GMRTAS150M
11 GB6 J2007+1609 20 07 54.31 +16 09 55.08 12.13 GB6
TXS 2005+160 20 07 51.70 +16 10 14.16 12.29 TEXAS
TGSSADR J200751.5+161016 20 07 51.50 +16 10 15.96 12.30 GMRTAS150M
12 NVSS J200751+161015 20 07 51.50 +16 10 15.96 12.31 NVSS
VLSSr J200751.8+161009 20 07 51.91 +16 10 09.12 12.33 VLSSR
13 NVSS J200748+160918 20 07 48.10 +16 09 18.00 13.57 NVSS
14 SAO 105723 20 07 45.19 +16 09 01.08 14.26 SAO
HD 354797 20 07 45.12 +16 09 00.72 14.27 HDEC
PPM 137692 20 07 45.10 +16 09 00.72 14.27 PPM
BD+15 4049 20 07 45.02 +16 09 01.80 14.27 ACRS

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