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 J1936.6+1921

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1936.6+1921 Swift-XRT detections in the field for 4FGL J1936.6+1921


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 19 37 15.42 +19 15 37.07 7.27 (1.9 ± 0.8) x 10-3 10 2.723 2.454

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1936.6+1921 Swift-XRT image with known radio, optical and UV sources for 4FGL J1936.6+1921


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
1 NVSS J193629+192352 19 36 29.71 +19 23 52.08 3.43 NVSS
2 NVSS J193619+192034 19 36 19.39 +19 20 34.08 4.67 NVSS
CGPS J193619+192011 19 36 19.39 +19 20 12.12 4.73 CGPSNGPCAT
3 CGPS J193619+191953 19 36 19.10 +19 19 54.12 4.87 CGPSNGPCAT
WSRTGP 1934+1918 19 36 27.10 +19 25 30.00 5.12 WSRTGP
TGSSADR J193626.7+192537 19 36 26.71 +19 25 37.92 5.27 GMRTAS150M
4 NVSS J193626+192538 19 36 26.59 +19 25 37.92 5.28 NVSS
CGPS J193626+192540 19 36 26.81 +19 25 41.16 5.31 CGPSNGPCAT
5 NVSS J193617+191751 19 36 17.21 +19 17 52.08 6.14 NVSS
CGPS J193617+191731 19 36 17.71 +19 17 31.92 6.24 CGPSNGPCAT
6 NVSS J193648+192743 19 36 48.79 +19 27 42.84 6.89 NVSS
7 NVSS J193624+191507 19 36 25.01 +19 15 06.84 6.95 NVSS
TGSSADR J193624.9+191506 19 36 25.01 +19 15 06.84 6.95 GMRTAS150M
CGPS J193624+191500 19 36 24.91 +19 15 01.08 7.05 CGPSNGPCAT
SAO 105047 19 36 50.18 +19 27 48.24 7.08 SAO
BD+19 4080 19 36 50.06 +19 27 49.32 7.09 ACRS
PPM 136603 19 36 50.06 +19 27 49.68 7.10 PPM
WSRTGP 1934+1907 19 36 24.79 +19 14 43.08 7.32 WSRTGP
8 WDS J19370+1927 19 37 00.00 +19 26 60.00 7.61 WDS
9 NVSS J193711+192234 19 37 10.99 +19 22 33.96 7.67 NVSS
10 NVSS J193618+192716 19 36 18.91 +19 27 15.84 7.68 NVSS
11 SAO 105051 19 36 56.66 +19 27 53.64 7.86 SAO
BD+19 4081 19 36 56.66 +19 27 53.64 7.86 ACRS
HD 185152 19 36 56.69 +19 27 53.64 7.87 HIC
HIP 96492 19 36 56.71 +19 27 54.00 7.87 HIPPARCOS
PPM 136610 19 36 56.69 +19 27 54.00 7.87 PPM
WDS J19372+1923 19 37 12.00 +19 22 59.88 7.98 WDS
12 HD 350220 19 37 14.04 +19 22 44.04 8.40 HDEC
13 NVSS J193715+192401 19 37 15.60 +19 24 01.08 9.07 NVSS
WSRTGP 1935+1917 19 37 15.60 +19 24 15.84 9.16 WSRTGP
CGPS J193716+192405 19 37 16.10 +19 24 05.04 9.20 CGPSNGPCAT
14 NVSS J193557+192225 19 35 57.70 +19 22 26.04 9.81 NVSS
15 HD 350219 19 37 18.70 +19 26 09.24 10.58 HDEC
16 HD 350173 19 35 55.03 +19 24 59.04 11.03 HDEC
17 CGPS J193722+191622 19 37 22.61 +19 16 23.16 11.36 CGPSNGPCAT
18 NVSS J193721+191549 19 37 21.60 +19 15 50.04 11.41 NVSS
19 HD 350177 19 36 33.19 +19 09 25.56 11.88 HDEC
20 NVSS J193713+191004 19 37 13.61 +19 10 05.16 13.81 NVSS

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