Space VLBI Observations of MKN501
Astrophysics
2007-05-23 v1
Abstract
We present here two epochs of Space VLBI Observations at 18 cm of the BL-Lac type object MKN 501. Thanks to the high resolution of these new data, we have found that the inner jet is centrally brightened at its beginning, but becomes extended and limb brightened at ~8 mas from the core. Moreover a comparison between the two epochs shows the presence of a proper motion with apparent velocity = 6.7c. Observational data have been used to constrain the jet velocity and orientation.
Cite
@article{arxiv.astro-ph/9808261,
title = {Space VLBI Observations of MKN501},
author = {G. Giovannini and W. D. Cotton and L. Feretti and L. Lara and T. Venturi},
journal= {arXiv preprint arXiv:astro-ph/9808261},
year = {2007}
}
Comments
4 Pages, Figures included. To appear in the proceedings of the 32nd COSPAR Scientific Assembly, Sect. E1.3, Nagoya, Japan, July 13-18 1998. Adv. in Space Research