An asymmetric relativistic model for classical double radio sources
Abstract
An asymmetric relativistic model for FRII radio sources is described which takes account of both relativistic effects and intrinsic/environmental asymmetries to explain the observed structural asymmetry of their radio lobes. A key feature of the model is jet-sidedness, which can now be determined for about 80% of the FRII sources in the 3CRR complete sample. It is shown that a simple asymmetric relativistic model can account for a wide range of observational data, and that the relativistic and intrinsic asymmetry effects are of comparable importance. The mean translational speed of the lobes is 0.12c with a standard deviation 0.04c. The results are in agreement with an orientation-based unified scheme in which the critical angle separating the radio galaxies from the radio quasars is about 50 degrees.
Cite
@article{arxiv.astro-ph/9905263,
title = {An asymmetric relativistic model for classical double radio sources},
author = {Tigran G. Arshakian and Malcolm S. Longair},
journal= {arXiv preprint arXiv:astro-ph/9905263},
year = {2007}
}
Comments
Oral report at the 194th IAU Symp. on "Activity in galaxies and related phenomena", held in Byurakan, Armenia, August 17-21, 1998, Eds. Y.Terzian, E.Khachikian, and D.Weedman, PASP Conf. Series, in press