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 J2035.8+4902

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J2035.8+4902 Swift-XRT detections in the field for 3FGL J2035.8+4902

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 20 35 56.86 +49 00 38.35 5.02 (1.1 ± 0.2) x 10-2 37 5.083 4.824
2 20 35 51.63 +49 01 44.28 5.35 (6 ± 2) x 10-3 22 3.623 3.189

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J2035.8+4902 Swift-XRT image with known radio, optical and UV sources for 3FGL J2035.8+4902

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J203556.9+490036 20 35 56.90 +49 00 37.08 2.46 ROSAT
1RXS J203556.9+490036 20 35 56.88 +49 00 36.00 2.48 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
CGPS J203551+490146 20 35 51.41 +49 01 45.84 1.06 CGPSNGPCAT
1 NVSS J203551+490143 20 35 51.50 +49 01 42.96 1.11 NVSS
TGSSADR J203551.5+490142 20 35 51.50 +49 01 41.88 1.13 GMRTAS150M
WN 2034.2+4851 20 35 51.41 +49 01 36.84 1.21 WENSS
2 2034+4850 20 35 51.50 +49 00 56.88 1.86 NORTH6CM
2034+4850 20 35 51.50 +49 00 56.88 1.86 NORTH20CM
3 NVSS J203526+490714 20 35 26.71 +49 07 14.16 5.85 NVSS
4 NVSS J203604+490822 20 36 04.99 +49 08 22.92 6.09 NVSS
CGPS J203604+490827 20 36 04.90 +49 08 26.88 6.16 CGPSNGPCAT
CGPS J203626+490526 20 36 25.99 +49 05 26.16 6.46 CGPSNGPCAT
5 NVSS J203626+490527 20 36 26.50 +49 05 27.96 6.55 NVSS
6 CGPS J203457+490246 20 34 57.31 +49 02 47.04 8.64 CGPSNGPCAT
7 CGPS J203700+485615 20 37 00.70 +48 56 15.00 13.32 CGPSNGPCAT
8 NVSS J203641+491440 20 36 40.99 +49 14 39.84 14.51 NVSS
CGPS J203641+491439 20 36 41.50 +49 14 39.84 14.54 CGPSNGPCAT
WN 2035.2+4903 20 36 45.91 +49 14 29.04 14.84 WENSS
9 NVSS J203647+491426 20 36 47.59 +49 14 26.16 14.97 NVSS
CGPS J203647+491427 20 36 47.90 +49 14 26.88 15.02 CGPSNGPCAT

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