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 J1645.7-2149

Field

Detected Excesses
Swift-XRT image of the field for 3FGL J1645.7-2149 Swift-XRT detections in the field for 3FGL J1645.7-2149

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 16 46 48.51 -21 35 08.40 6.65 (3.9 ± 1.2) x 10-3 13 3.118 3.174

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 16 45 52.90 -21 44 04.10 8.62 (2.4 ± 1.0) x 10-3 9 2.256 2.280
2 16 46 45.91 -21 40 00.82 5.44 (2.3 ± 1.1) x 10-3 16 3.371 2.109

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 3FGL J1645.7-2149 Swift-XRT image with known radio, optical and UV sources for 3FGL J1645.7-2149


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
TGSSADR J164550.4-215053 16 45 50.40 -21 50 53.88 1.59 GMRTAS150M
1 NVSS J164549-215108 16 45 49.90 -21 51 09.00 1.79 NVSS
[PME2013] J1645-2145 16 45 42.19 -21 45 51.84 3.79 AT2FGLUS
[SPT2015] ATCA J1645-2145 16 45 42.10 -21 45 52.92 3.79 FER2FUSRID
2 NVSS J164542-214551 16 45 42.19 -21 45 51.84 3.80 NVSS
3 WISH B1642.6-2136 16 45 40.70 -21 41 47.04 7.82 WISH
4 NVSS J164540-214022 16 45 40.01 -21 40 22.08 9.24 NVSS
5 NVSS J164629-214935 16 46 29.50 -21 49 35.04 9.73 NVSS
6 PSR J1646-2142 16 46 18.10 -21 42 09.00 10.18 ATNFPULSAR
TGSSADR J164626.7-214338 16 46 26.81 -21 43 39.00 10.79 GMRTAS150M
7 NVSS J164627-214340 16 46 27.00 -21 43 40.08 10.83 NVSS
8 NVSS J164559-213745 16 45 59.21 -21 37 45.12 12.01 NVSS

Penn State University Goddard Space Flight Center Swift