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arxiv 1005.4485 v2 pith:UNMKQITD submitted 2010-05-25 astro-ph.HE

Resistive Magnetohydrodynamic Simulations of Relativistic Magnetic Reconnection

Seiji Zenitani , Michael Hesse , Alex Klimas This is my paper
classification astro-ph.HE
keywords reconnectionrelativisticresistivitymagneticundermagnetohydrodynamicresistiverrmhd
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Resistive relativistic magnetohydrodynamic (RRMHD) simulations are applied to investigate the system evolution of relativistic magnetic reconnection. A time-split Harten--Lan--van Leer method is employed. Under a localized resistivity, the system exhibits a fast reconnection jet with an Alfv\'{e}nic Lorentz factor inside a narrow Petschek-type exhaust. Various shock structures are resolved in and around the plasmoid such as the post-plasmoid vertical shocks and the "diamond-chain" structure due to multiple shock reflections. Under a uniform resistivity, Sweet--Parker-type reconnection slowly evolves. Under a current-dependent resistivity, plasmoids are repeatedly formed in an elongated current sheet. It is concluded that the resistivity model is of critical importance for RRMHD modeling of relativistic magnetic reconnection.

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Cited by 2 Pith papers

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  1. General-relativistic resistive-magnetohydrodynamics simulations of self-consistent magnetized rotating neutron stars

    astro-ph.HE 2024-09 unverdicted novelty 8.0

    Resistive GRMHD simulations of rotating neutron stars show resistivity changes magnetic field geometries, suppresses instabilities, and lowers GW emission amplitude while maintaining a consistent 9:1 poloidal-to-toroi...

  2. Magnetic reconnection under centrifugal and gravitational electromotive forces

    astro-ph.HE 2024-11 unverdicted novelty 5.0

    Centrifugal and gravitational forces both raise magnetic reconnection rates near Kerr black holes, with gravity separating charges and centrifugal force shortening the current sheet via curved geometry seen by a comov...