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.

4FGL J2144.2+7709c

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J2144.2+7709c Swift-XRT detections in the field for 4FGL J2144.2+7709c


No detected excesses found.

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 44 08.11 +77 04 58.43 6.78 (1.5 ± 0.7) x 10-3 12 2.374 2.256

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J2144.2+7709c Swift-XRT image with known radio, optical and UV sources for 4FGL J2144.2+7709c


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J214426+770742 21 44 26.81 +77 07 42.96 1.66 NVSS
2 NVSS J214429+771109 21 44 29.21 +77 11 08.88 1.96 NVSS
TGSSADR J214514.8+771147 21 45 14.81 +77 11 47.04 4.03 GMRTAS150M
WN 2145.3+7657 21 45 15.41 +77 11 49.92 4.08 WENSS
3 NVSS J214514+771153 21 45 14.71 +77 11 53.16 4.09 NVSS
4 NVSS J214540+770650 21 45 40.80 +77 06 51.12 5.24 NVSS
5 SAO 10141 21 44 20.81 +77 03 11.52 6.10 HIC
BD+76 845 21 44 20.74 +77 03 11.52 6.11 ACRS
PPM 10946 21 44 20.76 +77 03 11.16 6.11 PPM
HIP 107328 21 44 20.64 +77 03 10.44 6.12 HIPPARCOS
SAO 10141 21 44 20.47 +77 03 08.28 6.16 SAO
6 NVSS J214245+770500 21 42 46.01 +77 05 00.96 6.67 NVSS
WN 2142.4+7651 21 42 15.79 +77 05 31.92 7.76 WENSS
TGSSADR J214214.2+770533 21 42 14.30 +77 05 33.00 7.82 GMRTAS150M
7 NVSS J214213+770536 21 42 13.70 +77 05 35.88 7.83 NVSS
8 NVSS J214704+770646 21 47 04.01 +77 06 46.08 9.60 NVSS
TGSSADR J214702.3+771302 21 47 02.30 +77 13 01.92 9.87 GMRTAS150M
9 NVSS J214703+771308 21 47 03.31 +77 13 08.04 9.96 NVSS
WN 2147.1+7659 21 47 04.39 +77 13 05.16 9.99 WENSS
10 NVSS J214358+772114 21 43 58.80 +77 21 15.12 12.00 NVSS
WN 2144.1+7707 21 43 58.99 +77 21 15.84 12.01 WENSS
11 NVSS J214231+772010 21 42 31.70 +77 20 09.96 12.35 NVSS
WN 2142.2+7705 21 42 00.91 +77 19 45.84 12.91 WENSS
12 NVSS J214200+772001 21 42 00.00 +77 20 02.04 13.15 NVSS

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