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 J1643.3-3148

Field

Detected Excesses

Swift-XRT detections in the field for 4FGL J1643.3-3148

No detected excesses found.

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1643.3-3148

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 J164318-314438	16 43 18.50	-31 44 39.12	3.95	NVSS
2	NVSS J164303-315018	16 43 03.19	-31 50 17.88	4.57	NVSS
3	NVSS J164256-314820	16 42 56.21	-31 48 20.16	5.69	NVSS
4	NVSS J164253-314122	16 42 53.90	-31 41 22.92	9.42	NVSS
5	PPM 748006	16 43 40.92	-31 58 19.20	10.55	PPM
6	NVSS J164241-314236	16 42 41.40	-31 42 36.00	10.61	NVSS
	TGSSADR J164241.3-314234	16 42 41.40	-31 42 33.84	10.63	GMRTAS150M
	MGPS J164241-314236	16 42 41.21	-31 42 37.08	10.63	MGPS2
7	NVSS J164228-314328	16 42 28.10	-31 43 27.84	12.70	NVSS
8	PPM 747988	16 42 35.62	-31 40 17.04	12.98	PPM
9	NVSS J164250-315933	16 42 50.50	-31 59 33.00	13.03	NVSS