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 J2237.2+6316

Field

Detected Excesses
Swift-XRT image of the field for 2FGL J2237.2+6316 Swift-XRT detections in the field for 2FGL J2237.2+6316

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 22 36 37.35 +63 29 30.12 3.66 (3.1 ± 0.2) x 10-2 492 22.380 21.060
2 22 37 04.25 +63 23 36.38 4.12 (5.6 ± 0.6) x 10-3 110 8.839 9.225
3 22 36 46.09 +63 16 05.76 4.63 (1.9 ± 0.4) x 10-3 45 5.067 4.982
4 22 37 39.13 +63 28 02.34 4.95 (1.3 ± 0.3) x 10-3 26 4.030 4.137
5 22 38 54.52 +63 28 54.81 5.20 (8 ± 3) x 10-4 19 3.356 3.241
6 22 36 02.61 +63 23 51.23 4.95 (9 ± 3) x 10-4 27 3.426 3.158
7 22 36 34.32 +63 27 24.83 4.83 (9 ± 3) x 10-4 23 3.410 3.049

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 22 37 35.85 +63 20 14.06 4.80 (8 ± 3) x 10-4 25 3.156 2.812
2 22 38 04.80 +63 26 49.08 5.59 (6 ± 2) x 10-4 16 2.690 2.757
3 22 38 08.23 +63 17 09.30 5.35 (6 ± 2) x 10-4 23 2.633 2.654
4 22 38 14.16 +63 19 32.64 4.83 (7 ± 3) x 10-4 27 2.633 2.624
5 22 36 47.22 +63 28 42.92 4.12 (7 ± 3) x 10-4 22 2.560 2.401
6 22 37 12.43 +63 23 37.71 4.27 (6 ± 3) x 10-4 26 2.849 2.182

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 2FGL J2237.2+6316 Swift-XRT image with known radio, optical and UV sources for 2FGL J2237.2+6316

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J223536.6+632656 22 35 36.60 +63 26 56.40 15.32 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J223733+631856 22 37 34.01 +63 18 56.88 3.58 NVSS
[SPT2015] VLA J2237+6318 22 37 34.99 +63 18 51.84 3.60 FER2FUSRID
CGPS J223735+631855 22 37 35.81 +63 18 56.16 3.70 CGPSNGPCAT
2 CGPS J223636+631502 22 36 36.00 +63 15 02.88 4.40 CGPSNGPCAT
3 [SPT2015] VLA J2236+6313 22 36 17.71 +63 13 50.16 6.73 FER2FUSRID
CGPS J223619+631316 22 36 19.10 +63 13 15.96 6.80 CGPSNGPCAT
4 NVSS J223618+631300 22 36 18.79 +63 13 00.84 6.95 NVSS
CGPS J223720+630816 22 37 20.59 +63 08 17.16 7.93 CGPSNGPCAT
5 NVSS J223721+630809 22 37 21.31 +63 08 08.88 8.06 NVSS
6 CGPS J223604+631352 22 36 04.10 +63 13 51.96 8.17 CGPSNGPCAT
TGSSADR J223721.1+630650 22 37 21.10 +63 06 51.12 9.37 GMRTAS150M
7 NVSS J223721+630648 22 37 21.41 +63 06 47.88 9.41 NVSS
WN 2235.7+6250A 22 37 20.71 +63 06 46.08 9.44 WENSS
CGPS J223721+630644 22 37 21.91 +63 06 43.92 9.48 CGPSNGPCAT
GB6 J2237+6305 22 37 34.01 +63 05 44.88 10.67 GB6
2235+6250 22 37 33.10 +63 05 39.84 10.73 NORTH6CM
2235+6250 22 37 33.10 +63 05 39.84 10.73 NORTH20CM
WN 2235.7+6250 22 37 34.30 +63 05 40.92 10.75 WENSS
AMIGPS J223734+630539 22 37 34.61 +63 05 39.84 10.77 AMIGPS16GH
TXS 2235+628 22 37 35.11 +63 05 39.12 10.80 TEXAS
VLSSr J223735.8+630538 22 37 35.81 +63 05 39.12 10.82 VLSSR
TGSSADR J223734.9+630537 22 37 34.99 +63 05 36.96 10.82 GMRTAS150M
WN 2235.7+6250B 22 37 35.11 +63 05 36.96 10.83 WENSS
8 NVSS J223735+630537 22 37 35.40 +63 05 36.96 10.84 NVSS
9 NVSS J223802+630649 22 38 02.40 +63 06 48.96 10.84 NVSS
CGPS J223735+630535 22 37 35.40 +63 05 35.88 10.86 CGPSNGPCAT
10 CGPS J223846+631906 22 38 46.90 +63 19 05.88 10.87 CGPSNGPCAT
CGPS J223803+630649 22 38 03.41 +63 06 48.96 10.90 CGPSNGPCAT
11 NVSS J223741+630513 22 37 41.30 +63 05 12.84 11.39 NVSS
12 CGPS J223639+632704 22 36 39.91 +63 27 05.04 11.54 CGPSNGPCAT
13 CGPS J223815+630543 22 38 15.00 +63 05 43.08 12.53 CGPSNGPCAT
14 NVSS J223854+631020 22 38 54.50 +63 10 21.00 12.75 NVSS
CGPS J223855+631026 22 38 55.80 +63 10 26.04 12.85 CGPSNGPCAT
15 CGPS J223844+630809 22 38 44.30 +63 08 08.88 12.98 CGPSNGPCAT
16 CGPS J223628+632807 22 36 28.20 +63 28 08.04 13.00 CGPSNGPCAT
CGPS J223533+632306 22 35 33.89 +63 23 06.00 13.18 CGPSNGPCAT
17 NVSS J223533+632305 22 35 33.70 +63 23 06.00 13.19 NVSS

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