Circular Polarimetry of Extragalactic Radio Sources
Instrumentation and Methods for Astrophysics
2009-01-30 v1 Cosmology and Nongalactic Astrophysics
Abstract
We report multi-frequency circular polarization measurements for the four extragalactic radio sources 0056-00, 0716+71, 3C138 and 3C161 taken at the Effelsberg 100-m radiotelescope. The data reduction is based on a new calibration procedure that allows the contemporary measurement of the four Stokes parameters at different frequencies with single-dish radiotelescopes. We are in the process of framing the observed full Stokes spectra within a theoretical model that explains that the level of measured circular polarization as Faraday conversion.
Keywords
Cite
@article{arxiv.0901.4678,
title = {Circular Polarimetry of Extragalactic Radio Sources},
author = {E. Cenacchi and A. Kraus and T. Beckert and K. -H. Mack},
journal= {arXiv preprint arXiv:0901.4678},
year = {2009}
}
Comments
5 pages, Proceeding of "Astronomical Polarimetry 2008: Science from Small to Large Telescope"