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Observational View of Magnetic Fields in Active Galactic Nuclei Jets

Published online by Cambridge University Press:  23 June 2017

Talvikki Hovatta
Talvikki Hovatta*
Affiliation:
Tuorla Observatory, Department of Physics and Astronomy, University of Turku Väisäläntie 20, 21500 Kaarina, Finland email: [email protected]
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Abstract

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According to the currently favored picture, relativistic jets in active galactic nuclei (AGN) are launched in the vicinity of the black hole by magnetic fields extracting energy from the spinning black hole or the accretion disk. In the past decades, various models from shocks to magnetic reconnection have been proposed as the energy dissipation mechanism in the jets. This paper presents a short review on how linear polarization observations can be used to constrain the magnetic field structure in the jets of AGN, and how the observations can be used to constrain the various emission models.

Keywords

polarizationgalaxies: activegalaxies: jetsgalaxies: magnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S324: New Frontiers in Black Hole Astrophysics , September 2016 , pp. 149 - 156
Copyright
Copyright © International Astronomical Union 2017 

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