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 J2133.9+6645

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J2133.9+6645 Swift-XRT detections in the field for 2FGL J2133.9+6645

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 34 33.55 +66 36 59.72 4.10 (2.2 ± 0.2) x 10-2 123 10.920 10.390
2 21 33 48.92 +66 47 04.01 4.59 (1.2 ± 0.2) x 10-2 65 7.453 7.430
3 21 34 25.30 +66 43 36.53 6.04 (3.8 ± 0.9) x 10-3 20 3.952 4.050
4 21 35 33.89 +66 41 57.56 5.59 (3.9 ± 1.0) x 10-3 23 4.067 3.984

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 21 34 37.20 +66 46 10.15 5.70 (2.3 ± 0.8) x 10-3 22 3.258 2.911

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J2133.9+6645 Swift-XRT image with known radio, optical and UV sources for 2FGL J2133.9+6645

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J213432.5+663713 21 34 32.59 +66 37 12.72 8.52 XMM-NEWTON
XMMSL2 J213432.5+663713 21 34 33.72 +66 37 00.48 8.76 XMM-NEWTON
BD+65 1606 21 34 33.94 +66 36 55.44 8.84 ROSAT
2RXS J213434.4+663655 21 34 34.49 +66 36 55.80 8.86 ROSAT
1RXS J213434.5+663655 21 34 34.49 +66 36 55.08 8.87 ROSAT
1RXS J213434.5+663655 21 34 34.49 +66 36 55.08 8.87 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
GB6 J2133+6646 21 33 51.10 +66 46 50.88 1.95 GB6
[SPT2015] VLA J2133+6647 21 33 49.20 +66 47 03.84 2.23 FER2FUSRID
TGSSADR J213348.7+664705 21 33 48.79 +66 47 04.92 2.26 GMRTAS150M
CGPS J213349+664706 21 33 49.10 +66 47 07.08 2.27 CGPSNGPCAT
1 NVSS J213349+664706 21 33 49.10 +66 47 07.08 2.27 NVSS
WN 2132.7+6633 21 33 47.71 +66 47 09.96 2.38 WENSS
TGSSADR J213442.3+663845 21 34 42.31 +66 38 45.96 7.65 GMRTAS150M
WN 2133.6+6625 21 34 42.50 +66 38 45.96 7.65 WENSS
2 NVSS J213443+663847 21 34 43.10 +66 38 48.12 7.66 NVSS
CGPS J213442+663846 21 34 42.79 +66 38 45.96 7.67 CGPSNGPCAT
TGSSADR J213238.0+664312 21 32 38.11 +66 43 12.00 8.07 GMRTAS150M
CGPS J213237+664311 21 32 37.80 +66 43 10.92 8.11 CGPSNGPCAT
3 NVSS J213237+664312 21 32 37.61 +66 43 12.00 8.12 NVSS
WN 2131.6+6630 21 32 37.20 +66 43 22.08 8.13 WENSS
4 NVSS J213535+663932 21 35 35.30 +66 39 32.04 11.09 NVSS
CGPS J213536+663916 21 35 36.10 +66 39 16.92 11.29 CGPSNGPCAT
5 CGPS J213201+664759 21 32 01.70 +66 47 60.00 11.83 CGPSNGPCAT
6 NVSS J213213+663700 21 32 13.99 +66 37 00.84 13.02 NVSS
WN 2131.2+6623 21 32 13.80 +66 37 00.12 13.05 WENSS
CGPS J213213+663659 21 32 13.61 +66 37 00.12 13.06 CGPSNGPCAT
TGSSADR J213213.2+663658 21 32 13.20 +66 36 57.96 13.11 GMRTAS150M
CGPS J213228+663449 21 32 28.30 +66 34 49.08 13.51 CGPSNGPCAT
7 NVSS J213227+663448 21 32 27.91 +66 34 48.00 13.54 NVSS

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