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.

1FGL J2104.6+2119

Field

Detected Excesses
Swift-XRT image of the field for 1FGL J2104.6+2119 Swift-XRT detections in the field for 1FGL J2104.6+2119

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 21 04 15.87 +21 18 07.65 4.88 (1.5 ± 0.2) x 10-2 49 6.339 6.549

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 04 34.52 +21 24 49.86 7.48 (2.4 ± 1.0) x 10-3 9 2.539 2.455
2 21 05 20.74 +21 16 43.94 6.31 (2.4 ± 1.0) x 10-3 11 2.499 2.394
3 21 05 17.08 +21 16 42.01 5.89 (2.6 ± 1.1) x 10-3 14 2.503 2.344

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 1FGL J2104.6+2119 Swift-XRT image with known radio, optical and UV sources for 1FGL J2104.6+2119

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
2RXS J210416.4+211817 21 04 16.49 +21 18 17.28 5.41 ROSAT
2RXS J210416.4+211817 21 04 16.49 +21 18 17.28 5.41 ROSAT
1RXS J210416.4+211816 21 04 16.39 +21 18 16.56 5.43 ROSAT
1RXS J210416.4+211816 21 04 16.39 +21 18 15.84 5.43 ROSAT
1 XMMSL2 J210416.3+211752 21 04 15.98 +21 18 04.32 5.58 XMM-NEWTON
XMMSL2 J210416.3+211752 21 04 16.18 +21 17 52.44 5.60 XMM-NEWTON
XMMSL2 J210416.3+211752 21 04 16.18 +21 17 52.44 5.60 XMM-NEWTON
1RXS J210416.4+211816 21 04 15.86 +21 18 05.04 5.60 ROSAT
2 2RXS J210503.0+212647 21 05 03.50 +21 26 47.76 9.02 ROSAT
2RXS J210503.0+212647 21 05 03.50 +21 26 47.76 9.02 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J210457+212216 21 04 57.19 +21 22 17.04 4.96 NVSS
TGSSADR J210415.9+211809 21 04 16.01 +21 18 10.08 5.55 GMRTAS150M
2 NVSS J210415+211805 21 04 15.91 +21 18 05.04 5.60 NVSS
TGSSADR J210416.9+211302 21 04 16.90 +21 13 03.00 8.43 GMRTAS150M
3 NVSS J210416+211303 21 04 16.70 +21 13 03.00 8.45 NVSS
4 NVSS J210401+211226 21 04 01.90 +21 12 25.92 11.28 NVSS
5 NVSS J210502+210948 21 05 02.90 +21 09 47.88 11.43 NVSS
6 NVSS J210526+211245 21 05 26.50 +21 12 46.08 13.13 NVSS

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