J1653+3945

other name right ascension (J2000) declination (J2000) 5-GHz total flux density optical ID redshift

Mark 501 16 h 53 m 52.2166 s + 39 ° 45 ´ 36.609 " 1.4 Jy BL Lac 0.034

VLBApls image at 5 GHz
color gif | contour gif | contour PostScript

Correlated flux density (Jy) vs. projected baseline length plot
gif | PostScript

Gaussian source model component parameters

flux density (Jy) EW position (mas) NS position (mas) major axis (mas) minor axis (mas) position angle (°)

0.439 -0.1 0.1 < 1.0 < 0.4 ...
0.099 0.9 -1.6 1.1 ± 0.5 < 1.5 111
0.104 3.2 -2.3 2.3 ± 0.3 < 1.1 82
0.141 7.4 -2.9 3.0 ± 0.4 2.1 ± 0.8 85

Other VLBI references

5 GHz: see Gurvits et al. 1999 (A&A 342, 378) for references to other VLBI image(s) published in the literature
1.6 GHz: VLBI image is published in the Caltech-Jodrell Bank Flat Spectrum Survey (CJF, Taylor et al. 1996, ApJS 107, 37)
2.3 and/or 8.4 GHz: multiple epoch VLBI images are available in the USNO Radio Reference Frame Image Database (RRFID, Fey & Charlot 2000, ApJS 128, 17)
15 GHz: multiple epoch VLBI images are available in the USNO Radio Reference Frame Image Database (RRFID, Fey & Charlot 2000, ApJS 128, 17)
15 GHz: multiple epoch VLBI images are available in the VLBA 2-cm survey (Kellermann et al. 1998, AJ 115, 1295)

VLBApls reference: Fomalont et al. (2000), ApJS, in press (November 2000)
VLBApls home page
Last modified: 17 Oct 2000

other name	right ascension (J2000)	declination (J2000)	5-GHz total flux density	optical ID	redshift
Mark 501	16 h 53 m 52.2166 s	+ 39 ° 45 ´ 36.609 "	1.4 Jy	BL Lac	0.034

flux density (Jy)	EW position (mas)	NS position (mas)	major axis (mas)	minor axis (mas)	position angle (°)
0.439	-0.1	0.1	< 1.0	< 0.4	...
0.099	0.9	-1.6	1.1 ± 0.5	< 1.5	111
0.104	3.2	-2.3	2.3 ± 0.3	< 1.1	82
0.141	7.4	-2.9	3.0 ± 0.4	2.1 ± 0.8	85