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.

2FGL J2018.0+3626

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J2018.0+3626 Swift-XRT detections in the field for 2FGL J2018.0+3626

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 17 36.12 +36 37 57.01 4.92 (5.1 ± 1.2) x 10-3 28 4.560 4.116
2 20 18 47.44 +36 20 19.96 5.64 (5.3 ± 1.3) x 10-3 23 4.117 3.989

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 18 30.26 +36 22 48.24 5.89 (2.3 ± 0.9) x 10-3 18 2.560 2.449
2 20 18 32.06 +36 21 14.71 7.48 (1.6 ± 0.7) x 10-3 8 2.310 2.245

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J2018.0+3626 Swift-XRT image with known radio, optical and UV sources for 2FGL J2018.0+3626

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 CXOGSG J201757.1+362637 20 17 57.19 +36 26 38.04 1.13 CHANDRA
2 CXOGSG J201756.8+362736 20 17 56.83 +36 27 36.72 1.37 CHANDRA
3 CXOGSG J201809.4+362739 20 18 09.43 +36 27 39.60 1.56 CHANDRA
4 CXOGSG J201800.4+362450 20 18 00.43 +36 24 50.76 2.10 CHANDRA
5 CXOGSG J201755.8+362507 20 17 55.80 +36 25 07.68 2.24 CHANDRA
6 CXOGSG J201800.9+362312 20 18 00.91 +36 23 12.84 3.70 CHANDRA
7 CXOGSG J201820.9+362752 20 18 20.95 +36 27 52.56 3.81 CHANDRA
8 CXOGSG J201751.4+363007 20 17 51.43 +36 30 07.92 3.94 CHANDRA
9 CXOGSG J201810.5+363047 20 18 10.56 +36 30 47.88 4.21 CHANDRA
10 CXOGSG J201814.9+363029 20 18 14.93 +36 30 29.16 4.36 CHANDRA
11 CXOGSG J201740.2+362520 20 17 40.27 +36 25 20.28 4.76 CHANDRA
12 CXOGSG J201744.8+363023 20 17 44.81 +36 30 23.40 5.00 CHANDRA
13 CXOGSG J201738.2+362945 20 17 38.28 +36 29 45.60 5.67 CHANDRA
14 CXOGSG J201733.9+362706 20 17 34.01 +36 27 06.84 5.76 CHANDRA
15 CXOGSG J201827.8+362943 20 18 27.84 +36 29 43.44 5.80 CHANDRA
16 CXOGSG J201826.8+362248 20 18 26.88 +36 22 48.36 6.37 CHANDRA
17 CXOGSG J201737.4+362238 20 17 37.51 +36 22 38.64 6.61 CHANDRA
18 CXOGSG J201730.3+362425 20 17 30.31 +36 24 25.92 6.95 CHANDRA
19 CXOGSG J201824.0+363222 20 18 24.91 +36 32 22.20 6.97 CHANDRA
20 CXOGSG J201830.8+362227 20 18 30.89 +36 22 27.12 7.21 CHANDRA
21 CXOGSG J201809.3+363411 20 18 09.31 +36 34 11.28 7.41 CHANDRA
22 CXOGSG J201839.5+362614 20 18 39.53 +36 26 14.64 7.45 CHANDRA
23 CXOGSG J201732.7+362119 20 17 32.76 +36 21 19.44 8.20 CHANDRA
24 CXOGSG J201850.3+362810 20 18 50.35 +36 28 10.20 9.68 CHANDRA
25 1WGA J2018.6+3621 20 18 41.30 +36 21 00.72 9.75 ROSAT
26 2RXS J201846.7+362122 20 18 46.80 +36 21 22.68 10.46 ROSAT
1RXS J201846.8+362119 20 18 46.80 +36 21 19.44 10.49 ROSAT
27 3XMM J201802.8+363737 20 18 02.81 +36 37 37.56 10.73 XMM-NEWTON
28 2RXP J201736.1+363756 20 17 36.50 +36 37 56.28 12.26 ROSAT
1RXS J201736.0+363803 20 17 36.00 +36 38 03.12 12.37 ROSAT
2RXS J201736.0+363803 20 17 36.60 +36 38 03.84 12.38 ROSAT
29 1RXS J201715.6+363457 20 17 15.60 +36 34 57.36 12.42 ROSAT
2RXP J201734.6+363805 20 17 34.54 +36 38 05.28 12.53 ROSAT
1WGA J2017.5+3638 20 17 34.80 +36 38 07.08 12.54 ROSAT
1WGA J2017.5+3638 20 17 34.61 +36 38 06.72 12.55 ROSAT
30 3XMM J201857.6+363648 20 18 57.60 +36 36 48.24 14.83 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 CGPS J201802+362456 20 18 02.30 +36 24 56.88 1.95 CGPSNGPCAT
2 PSR J2017+3625 20 17 55.80 +36 25 08.04 2.23 ATNFPULSAR
WN 2016.1+3620 20 17 59.81 +36 30 10.08 3.32 WENSS
CGPS J201759+363015 20 17 59.81 +36 30 15.12 3.40 CGPSNGPCAT
TGSSADR J201759.8+363016 20 17 59.81 +36 30 16.92 3.43 GMRTAS150M
[SPT2015] VLA J2017+3630 20 17 59.81 +36 30 18.00 3.44 FER2FUSRID
3 NVSS J201800+363019 20 18 00.41 +36 30 19.08 3.45 NVSS
[WBH2005] G74.586+0.427 20 17 59.81 +36 30 19.08 3.46 WBHGP20CM
WSRTGP 2016+3620 20 18 00.00 +36 30 20.16 3.48 WSRTGP
4 NVSS J201738+362656 20 17 38.30 +36 26 56.04 4.89 NVSS
5 NVSS J201821+362240 20 18 21.19 +36 22 40.08 5.64 NVSS
6 NVSS J201750+363334 20 17 50.81 +36 33 34.92 7.09 NVSS
7 CGPS J201837+362336 20 18 37.61 +36 23 36.96 7.77 CGPSNGPCAT
8 NVSS J201720+362736 20 17 20.30 +36 27 36.00 8.54 NVSS
9 NVSS J201721+362850 20 17 21.10 +36 28 50.88 8.57 NVSS
10 MITG J2017+3635 20 17 56.90 +36 35 26.88 8.63 MITGB6CM
11 MITG J2018+3634 20 18 23.11 +36 34 49.08 8.92 MITGB6CM
12 NVSS J201758+361746 20 17 58.20 +36 17 47.04 9.16 NVSS
13 NVSS J201849+362852 20 18 49.61 +36 28 51.96 9.64 NVSS
14 [WBH2005] G74.601+0.234 20 18 50.11 +36 24 33.12 9.84 WBHGP20CM
15 NVSS J201725+363422 20 17 25.10 +36 34 22.08 10.62 NVSS
16 WSRTGP 2016+3628 20 17 54.91 +36 37 45.84 10.98 WSRTGP
17 [WBH2005] G74.653+0.536 20 17 44.30 +36 37 18.84 11.05 WBHGP20CM
18 NVSS J201830+363731 20 18 30.19 +36 37 31.08 11.98 NVSS
19 CGPS J201725+361710 20 17 25.70 +36 17 09.96 12.25 CGPSNGPCAT
CGPS J201841+361720 20 18 41.81 +36 17 21.12 12.38 CGPSNGPCAT
[WBH2005] G74.486+0.189 20 18 41.90 +36 17 17.88 12.44 WBHGP20CM
WSRTGP 2016+3607 20 18 41.81 +36 17 12.84 12.49 WSRTGP
20 NVSS J201841+361712 20 18 41.81 +36 17 12.84 12.49 NVSS
21 NVSS J201706+362127 20 17 06.31 +36 21 27.00 12.58 NVSS
TGSSADR J201852.2+363631 20 18 52.20 +36 36 32.04 13.86 GMRTAS150M
WN 2016.9+3627 20 18 52.51 +36 36 29.16 13.87 WENSS
[WBH2005] G74.771+0.340 20 18 52.51 +36 36 32.04 13.90 WBHGP20CM
CGPS J201852+363631 20 18 52.51 +36 36 32.04 13.90 CGPSNGPCAT
22 NVSS J201852+363632 20 18 52.51 +36 36 32.04 13.91 NVSS
WSRTGP 2016+3627 20 18 52.70 +36 36 30.96 13.92 WSRTGP

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