Original title: Magnetically ejected disks: Equatorial outflows near vertically magnetized black hole
Authors: Karas, Vladimír ; Sapountzis, K. ; Janiuk, A.
Document type: Papers
Conference/Event: RAGtime /20.-22./, Opava (CZ), 20181015
Year: 2020
Language: eng
Abstract: We show an example of an equatorial outflow driven by a large scale magnetic field. We initiate our computations with a spherically symmetric distribution of gas, which flows on to the domain from a large distance, r R+. After the flow settles in a steady (Bondi) solution, we impose an axially symmetric configuration of a uniform (Wald) magnetic field aligned with the rotation axis of the black hole. Then we evolve the initial configuration numerically by employing the MHD code that approaches the force-free limit of a perfectly conducting fluid. We observe how the magnetic lines of force start accreting with the plasma while an equatorial intermittent outflow develops and goes on ejecting some material away from the black hole.
Keywords: accretion; black hole physics; magnetic fields
Project no.: 8J20PL037, GC19-01137J (CEP)
Funding provider: GA MŠk, GA ČR
Host item entry: Proceedings of RAGtime 20/22: Workshops on black holes and neutron stars, ISBN 978-80-7510-433-5

Institution: Astronomical Institute AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://proceedings.physics.cz/images/proc21/kar.pdf
Original record: http://hdl.handle.net/11104/0317183

Permalink: http://www.nusl.cz/ntk/nusl-432413


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