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 J2017.3+3525

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J2017.3+3525 Swift-XRT detections in the field for 4FGL J2017.3+3525

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 17 38.43 +35 37 40.19 5.40 (2.1 ± 0.6) x 10-3 22 3.997 3.298

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 20 16 39.28 +35 25 40.89 6.52 (1.4 ± 0.5) x 10-3 12 2.598 2.651
2 20 16 48.58 +35 29 43.45 6.21 (1.0 ± 0.5) x 10-3 13 2.411 2.239

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2017.3+3525 Swift-XRT image with known radio, optical and UV sources for 4FGL J2017.3+3525


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
CGPS J201724+352554 20 17 24.50 +35 25 54.84 0.58 CGPSNGPCAT
1 NVSS J201725+352600 20 17 25.10 +35 25 59.88 0.70 NVSS
CGPS J201720+352330 20 17 20.90 +35 23 30.12 1.94 CGPSNGPCAT
2 NVSS J201721+352322 20 17 21.41 +35 23 22.92 2.04 NVSS
3 CGPS J201717+352933 20 17 17.11 +35 29 34.08 4.43 CGPSNGPCAT
4 CGPS J201736+351813 20 17 36.00 +35 18 14.04 7.55 CGPSNGPCAT
5 WDS J20177+3518 20 17 42.00 +35 17 60.00 8.24 WDS
[WBH2005] G73.577-0.223 20 17 51.41 +35 18 19.08 9.01 WBHGP20CM
6 NVSS J201752+351820 20 17 52.80 +35 18 20.16 9.18 NVSS
CGPS J201752+351820 20 17 52.90 +35 18 20.16 9.19 CGPSNGPCAT
TXS 2015+351 20 17 52.99 +35 18 20.88 9.19 TEXAS
WN 2015.9+3508 20 17 52.90 +35 18 19.08 9.21 WENSS
WSRTGP 2015+3508 20 17 52.99 +35 18 20.16 9.21 WSRTGP
TGSSADR J201752.9+351818 20 17 52.99 +35 18 18.00 9.22 GMRTAS150M
VLSSr J201753.3+351815 20 17 53.40 +35 18 15.84 9.31 VLSSR
[WBH2005] G73.582-0.230 20 17 53.90 +35 18 20.16 9.33 WBHGP20CM
7 SAO 69735 20 16 39.84 +35 28 07.32 9.38 SAO
HD 192990 20 16 39.77 +35 28 06.24 9.38 HIC
BD+35 4047 20 16 39.77 +35 28 06.24 9.38 ACRS
HIP 99943 20 16 39.74 +35 28 06.60 9.39 HIPPARCOS
PPM 84604 20 16 39.74 +35 28 06.60 9.39 PPM
B2.3 2015+35 20 17 53.50 +35 17 60.00 9.53 DIXON
8 NVSS J201750+353405 20 17 50.59 +35 34 05.88 10.31 NVSS
CGPS J201750+353410 20 17 50.11 +35 34 09.84 10.31 CGPSNGPCAT
9 SAO 69759 20 17 08.50 +35 15 19.80 10.50 SAO
BD+34 3954 20 17 08.30 +35 15 20.16 10.51 ACRS
PPM 84628 20 17 08.30 +35 15 19.80 10.51 PPM
10 BD+35 4055 20 17 57.36 +35 33 55.44 10.96 ACRS
PPM 84652 20 17 57.36 +35 33 56.52 10.97 PPM
SAO 69779 20 17 57.46 +35 33 55.80 10.98 SAO
CGPS J201815+352031 20 18 15.00 +35 20 30.84 11.51 CGPSNGPCAT
WSRTGP 2016+3511 20 18 14.90 +35 20 27.96 11.51 WSRTGP
11 NVSS J201815+352028 20 18 15.60 +35 20 27.96 11.63 NVSS
[WBH2005] G73.430+0.007 20 16 31.01 +35 18 45.00 12.62 WBHGP20CM
VLSSr J201631.4+351833 20 16 31.49 +35 18 33.12 12.65 VLSSR
WSRTGP 2014+3509 20 16 30.79 +35 18 47.16 12.65 WSRTGP
TXS 2014+351 20 16 30.70 +35 18 47.88 12.66 TEXAS
B2.3 2014+35B 20 16 30.60 +35 18 48.96 12.67 DIXON
12 NVSS J201630+351847 20 16 30.60 +35 18 47.16 12.67 NVSS
CGPS J201630+351847 20 16 30.60 +35 18 47.16 12.68 CGPSNGPCAT
QORG J201630.6+351847 20 16 30.60 +35 18 47.16 12.68 QORGCAT
13 MITG J2016+3519 20 16 29.30 +35 19 13.08 12.70 MITGB6CM
WN 2014.6+3509 20 16 30.70 +35 18 42.12 12.70 WENSS
TGSSADR J201630.5+351844 20 16 30.60 +35 18 43.92 12.71 GMRTAS150M
[WBH2005] G73.429+0.011 20 16 30.00 +35 18 48.96 12.78 WBHGP20CM
GB6 J2016+3518 20 16 30.00 +35 18 42.84 12.82 GB6
2014+3509 20 16 30.19 +35 18 37.08 12.84 NORTH6CM
14 2014+3526 20 16 41.21 +35 35 36.96 13.44 NORTH6CM
15 MITG J2016+3518 20 16 27.91 +35 17 60.00 13.57 MITGB6CM
GB6 J2016+3535 20 16 41.90 +35 35 57.12 13.60 GB6
CGPS J201759+353652 20 17 59.59 +35 36 52.92 13.64 CGPSNGPCAT
[WBH2005] G73.849-0.073 20 17 59.81 +35 36 52.92 13.66 WBHGP20CM
WSRTGP 2016+3527 20 17 59.21 +35 36 59.04 13.68 WSRTGP
16 NVSS J201759+353655 20 17 59.90 +35 36 55.08 13.70 NVSS
WN 2014.8+3527 20 16 42.41 +35 36 41.04 14.12 WENSS
WSRTGP 2014+3527 20 16 42.10 +35 36 47.16 14.22 WSRTGP
TGSSADR J201642.1+353647 20 16 42.10 +35 36 47.16 14.23 GMRTAS150M
17 NVSS J201642+353648 20 16 42.19 +35 36 48.96 14.24 NVSS
CGPS J201642+353648 20 16 42.19 +35 36 48.96 14.24 CGPSNGPCAT
[WBH2005] G73.701+0.144 20 16 42.19 +35 36 48.96 14.25 WBHGP20CM

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