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.

3FGL J2353.3+6639

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J2353.3+6639 Swift-XRT detections in the field for 3FGL J2353.3+6639

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 23 53 01.09 +66 42 44.58 5.64 (5.5 ± 1.3) x 10-3 23 4.151 4.167

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 23 53 21.82 +66 46 17.40 7.09 (3.0 ± 1.0) x 10-3 11 2.858 2.971
2 23 54 26.04 +66 54 22.95 6.93 (2.6 ± 0.9) x 10-3 10 2.708 2.733
3 23 53 51.07 +66 44 57.60 7.27 (2.2 ± 0.9) x 10-3 12 2.635 2.463

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2353.3+6639 Swift-XRT image with known radio, optical and UV sources for 3FGL J2353.3+6639


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
QORG J235255.8+664008 23 52 55.80 +66 40 08.04 2.56 QORGCAT
1 NVSS J235255+664010 23 52 55.01 +66 40 10.92 2.64 NVSS
[SPT2015] VLA J2352+6640 23 52 54.19 +66 40 15.96 2.74 FER2FUSRID
CGPS J235253+664016 23 52 53.90 +66 40 17.04 2.77 CGPSNGPCAT
AMIGPS J235303+664250 23 53 03.60 +66 42 50.04 3.71 AMIGPS16GH
2 NVSS J235301+664243 23 53 01.61 +66 42 43.92 3.71 NVSS
CGPS J235301+664244 23 53 01.61 +66 42 45.00 3.72 CGPSNGPCAT
3 CGPS J235356+664047 23 53 56.40 +66 40 46.92 3.72 CGPSNGPCAT
[SPT2015] VLA J2353+6642 23 53 01.49 +66 42 45.00 3.73 FER2FUSRID
WN 2350.5+6626 23 52 59.59 +66 42 42.84 3.80 WENSS
4 [SPT2015] VLA J2354+6638 23 54 13.01 +66 38 20.04 5.30 FER2FUSRID
TGSSADR J235416.4+663851 23 54 16.39 +66 38 51.00 5.54 GMRTAS150M
CGPS J235416+663846 23 54 16.49 +66 38 47.04 5.56 CGPSNGPCAT
5 NVSS J235417+663843 23 54 17.30 +66 38 44.16 5.64 NVSS
WN 2351.8+6622 23 54 19.30 +66 38 54.96 5.81 WENSS
6 CGPS J235425+663855 23 54 25.39 +66 38 56.04 6.42 CGPSNGPCAT
7 SAO 20917 23 53 21.70 +66 46 14.16 6.69 SAO
PPM 24807 23 53 21.67 +66 46 14.88 6.70 PPM
BD+65 1959 23 53 21.67 +66 46 15.60 6.71 ACRS
8 NVSS J235311+664721 23 53 11.90 +66 47 21.12 7.85 NVSS
9 V854 Cas 23 52 09.19 +66 34 49.80 8.54 GCVS
10 NVSS J235303+664811 23 53 03.19 +66 48 11.88 8.82 NVSS
11 NSV 14736 23 52 40.10 +66 30 34.92 9.84 GCVSNSVARS
12 CGPS J235159+663250 23 51 59.90 +66 32 49.92 10.47 CGPSNGPCAT
13 NVSS J235226+664835 23 52 26.59 +66 48 36.00 10.51 NVSS
14 CGPS J235204+664653 23 52 04.39 +66 46 53.04 10.53 CGPSNGPCAT
CGPS J235226+664836 23 52 26.40 +66 48 37.08 10.54 CGPSNGPCAT
15 We 2-262 23 52 18.00 +66 31 00.12 10.59 PLNEBULAE
16 PPM 24781 23 51 35.71 +66 35 22.56 11.24 PPM
BD+65 1954 23 51 35.57 +66 35 22.20 11.26 ACRS
17 BD+66 1654 23 54 18.96 +66 49 25.68 11.42 ACRS
PPM 24823 23 54 18.98 +66 49 25.68 11.42 PPM
SAO 20928 23 54 18.96 +66 49 27.12 11.44 SAO
CGPS J235246+665123 23 52 46.70 +66 51 23.04 12.31 CGPSNGPCAT
18 NVSS J235246+665130 23 52 46.80 +66 51 29.88 12.42 NVSS
CGPS J235201+665039 23 52 01.39 +66 50 39.12 13.60 CGPSNGPCAT
19 NVSS J235201+665038 23 52 01.01 +66 50 39.12 13.61 NVSS

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