Circular Polarization in AGN
Abstract
Description
We discuss the constraints that recent observations place on circular polarization in AGN. In many sources the circular polarization is variable on short timescales, indicating that it originates in compact regions of the sources. The best prospects for gleaning further information about circular polarization are high resolution VLBI and scintillation `imaging' which probe source structure on milliarcsecond and microarcsecond scales respectively.
10 pages, 2 figs; PASA, accepted: refereed conference proceedings from a workshop on AGN variability held at the ATNF, Sydney in June 2001 (see also http://www.publish.csiro.au/journals/pasa/pip.cfm#v19n1)
10 pages, 2 figs; PASA, accepted: refereed conference proceedings from a workshop on AGN variability held at the ATNF, Sydney in June 2001 (see also http://www.publish.csiro.au/journals/pasa/pip.cfm#v19n1)