2001/11/15 by J. -P. Macquart, Jean‐Pierre Macquart, Macquart, J. -P.
Engineering · Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #Ionosphere and magnetosphere dynamics #Particle Accelerators and Free-Electron Lasers #Particle accelerators and beam dynamics #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0111302
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)
arxiv created 2001/11/15 · openalex publication_date 2001/11/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.