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 J0644.6+6034

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J0644.6+6034 Swift-XRT detections in the field for 2FGL J0644.6+6034

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 06 44 36.07 +60 38 52.43 4.76 (2.0 ± 0.3) x 10-2 50 6.452 6.264
2 06 45 01.97 +60 24 44.99 4.81 (1.8 ± 0.3) x 10-2 44 6.143 5.967
3 06 44 59.78 +60 31 35.21 6.65 (5 ± 2) x 10-3 16 3.041 3.099

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 06 43 35.41 +60 37 45.07 6.12 (3 ± 2) x 10-3 9 2.301 2.010

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J0644.6+6034 Swift-XRT image with known radio, optical and UV sources for 2FGL J0644.6+6034

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2RXS J064504.1+602518 06 45 04.18 +60 25 18.48 9.61 ROSAT
2RXS J064504.1+602518 06 45 04.18 +60 25 18.48 9.61 ROSAT
1RXS J064501.6+602501 06 45 01.61 +60 25 01.56 9.79 ROSAT
2 [MML2015] 5BZU J0645+6024 06 45 01.56 +60 24 45.00 10.06 null
3 1RXS J064307.7+604534 06 43 07.70 +60 45 34.56 15.91 ROSAT
2RXS J064307.3+604533 06 43 07.37 +60 45 33.12 15.92 ROSAT
2RXS J064307.3+604533 06 43 07.37 +60 45 33.12 15.92 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
WN 0640.0+6041 06 44 35.69 +60 38 48.12 4.36 WENSS
TGSSADR J064435.9+603849 06 44 35.90 +60 38 48.84 4.39 GMRTAS150M
1 NVSS J064435+603849 06 44 35.59 +60 38 49.92 4.40 NVSS
[SPT2015] VLA J0644+6038 06 44 35.69 +60 38 51.00 4.42 FER2FUSRID
2 NVSS J064400+603824 06 44 00.79 +60 38 25.08 6.29 NVSS
3 NVSS J064549+603336 06 45 49.20 +60 33 37.08 8.45 NVSS
WN 0639.3+6043 06 43 51.00 +60 40 42.96 8.73 WENSS
TGSSADR J064350.5+604045 06 43 50.50 +60 40 45.84 8.80 GMRTAS150M
4 NVSS J064350+604049 06 43 50.59 +60 40 49.08 8.83 NVSS
5 NVSS J064403+602554 06 44 03.00 +60 25 54.12 9.75 NVSS
0640+6028 06 44 59.50 +60 24 54.00 9.85 NORTH20CM
0640+6028 06 44 59.50 +60 24 54.00 9.85 NORTH6CM
GB6 J0644+6024 06 44 59.71 +60 24 43.92 10.02 GB6
[MML2015] 5BZU J0645+6024 06 45 01.61 +60 24 45.00 10.06 ROMABZCAT
TGSSADR J064501.5+602444 06 45 01.61 +60 24 45.00 10.06 GMRTAS150M
VLSSr J064501.0+602443 06 45 01.10 +60 24 43.92 10.06 VLSSR
WN 0640.5+6027 06 45 01.39 +60 24 42.84 10.08 WENSS
TXS 0640+604 06 45 01.61 +60 24 42.84 10.09 TEXAS
6 NVSS J064501+602442 06 45 01.39 +60 24 42.12 10.09 NVSS
7 NVSS J064555+603856 06 45 55.20 +60 38 56.04 10.16 NVSS
8C 0640+604 06 45 01.51 +60 24 29.88 10.30 RRS8C38MHZ
8 NVSS J064326+603950 06 43 26.30 +60 39 50.04 10.59 NVSS
TGSSADR J064325.9+603949 06 43 25.90 +60 39 50.04 10.62 GMRTAS150M
WN 0638.9+6042 06 43 25.61 +60 39 52.92 10.69 WENSS
9 NVSS J064530+604554 06 45 30.00 +60 45 54.00 12.92 NVSS
TGSSADR J064552.2+602425 06 45 52.20 +60 24 24.84 13.36 GMRTAS150M
WN 0641.3+6027 06 45 52.30 +60 24 24.84 13.38 WENSS
10 NVSS J064552+602426 06 45 52.99 +60 24 27.00 13.40 NVSS

Penn State University Goddard Space Flight Center Swift