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Adiabatic expansion and magnetic fields in AGN jets

2008/12/25 by A. B. Pushkarev, Y. Y. Kovalev, Pushkarev, A. B. +3
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Gamma-ray bursts and supernovae #Radio Astronomy Observations and Technology #astro-ph

paper · pdf · doi:10.48550/arxiv.0812.4617

6 pages, 4 color figures, to be published in Proceedings of Science, The 9th European VLBI Network Symposium

arxiv created 2008/12/25 · arxiv updated 2009/12/01

Abstract

Results of high-resolution simultaneous multi-frequency 8.1-15.4 GHz VLBA polarimetric observations of relativistic jets in active galactic nuclei (the MOJAVE-2 project) are analyzed. We compare characteristics of VLBI features with jet model predictions and test if adiabatic expansion is a dominating mechanism for the evolution of relativistic shocks in parsec-scale AGN jets. We also discuss magnetic field configuration, both predicted by the model and deduced from electric vector position angle measurements.

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