Polarization in CSS/GPS radio sources
Abstract
The polarisation properties of the intrinsically small (< 20 kpc) radio sources are briefly discussed. At centimetric and decimetric wavelengths, substantial polarised emission is often detected in quasars and, at a lower level, in radio sources identified with galaxies with projected linear sizes in excess of a few kpc. The projected linear size at which some polarised emission is detected decreases with observing frequency. High Rotation Measures are commonly found in these sources, implying high electron/ion densities and/or strong interstellar magnetic fields. For the objects found unpolarized at resolutions of the order of a few pc, either the source magnetic field is highly disordered or the scale of ambient magnetic field cells is not resolved.
Cite
@article{arxiv.astro-ph/0412299,
title = {Polarization in CSS/GPS radio sources},
author = {D. Dallacasa},
journal= {arXiv preprint arXiv:astro-ph/0412299},
year = {2007}
}
Comments
6 pages. 2 figures. Proceedings of the 7th European VLBI Network Symposium held in Toledo, Spain on October 12-15, 2004. Editors: R. Bachiller, F. Colomer, J.-F. Desmurs, P. de Vicente (Observatorio Astronomico Nacional), p. 59-64. Needs evn2004.cls