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 J1951.3+6909

Field

Detected Excesses

Swift-XRT image of the field for 3FGL J1951.3+6909 Swift-XRT detections in the field for 3FGL J1951.3+6909

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 51 49.66 +69 07 19.21 5.24 (10 ± 2) x 10-3 32 5.052 4.872

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 19 52 06.57 +69 00 39.33 8.62 (2.5 ± 1.0) x 10-3 9 2.354 2.552
2 19 51 40.22 +69 14 35.67 7.48 (2.1 ± 1.0) x 10-3 9 2.338 2.088

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1951.3+6909 Swift-XRT image with known radio, optical and UV sources for 3FGL J1951.3+6909

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL2 J195150.7+690717 19 51 50.59 +69 07 17.04 3.42 XMM-NEWTON
XMMSL2 J195150.7+690717 19 51 50.59 +69 07 17.04 3.42 XMM-NEWTON
2RXS J195152.8+690733 19 51 52.82 +69 07 33.60 3.44 ROSAT
2RXS J195152.8+690733 19 51 52.82 +69 07 33.60 3.44 ROSAT
1RXS J195153.6+690733 19 51 53.59 +69 07 33.60 3.49 ROSAT
2 2RXS J195317.8+690455 19 53 17.83 +69 04 55.56 11.40 ROSAT
2RXS J195317.8+690455 19 53 17.83 +69 04 55.56 11.40 ROSAT
3 1RXS J195059.1+685800 19 50 59.11 +68 58 00.48 11.48 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
WN 1952.1+6901 19 52 10.80 +69 09 05.04 4.54 WENSS
TGSSADR J195211.2+690906 19 52 11.21 +69 09 06.12 4.58 GMRTAS150M
1 NVSS J195211+690904 19 52 11.59 +69 09 05.04 4.61 NVSS
2 NVSS J195018+690202 19 50 19.01 +69 02 03.12 9.10 NVSS
3 NVSS J194944+690543 19 49 44.90 +69 05 43.08 9.20 NVSS
WN 1949.7+6858 19 49 44.71 +69 05 44.88 9.20 WENSS
TGSSADR J194944.3+690540 19 49 44.40 +69 05 40.92 9.26 GMRTAS150M
4 NVSS J195204+691834 19 52 04.39 +69 18 33.84 10.04 NVSS
WN 1951.4+6851 19 51 29.90 +68 58 51.96 10.52 WENSS
TGSSADR J195130.5+685842 19 51 30.50 +68 58 41.88 10.68 GMRTAS150M
5 NVSS J195130+685839 19 51 30.19 +68 58 39.00 10.73 NVSS
6 NVSS J194953+691739 19 49 53.30 +69 17 39.12 11.31 NVSS
7 NVSS J195310+691520 19 53 10.30 +69 15 20.88 11.49 NVSS
WN 1952.8+6911 19 52 51.50 +69 19 37.92 13.11 WENSS
8 NVSS J195253+691943 19 52 53.59 +69 19 42.96 13.29 NVSS

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