The Effect of Neutrino Radiation on Magnetorotational Instability in Proto-Neutron Stars

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dc.creatorMasada, Youhei
dc.creatorSano, Takayoshi
dc.creatorShibata, Kazunari
dc.date2006-10-02
dc.date.accessioned2026-07-07T10:40:19Z
dc.date.available2026-07-07T10:40:19Z
dc.descriptionNeutrino radiation takes a major role in the momentum, heat, and lepton transports in proto-neutron stars (PNSs). These diffusive processes affect the growth of magnetorotational instability (MRI) in PNSs. We perform a local linear analysis for the axisymmetric and nonaxisymmetric MRI including the effects of neutrino transports and ohmic dissipation. We find that the MRI can grow even in the multi-diffusive situations that are realized in neutrino loaded PNSs. When the toroidal magnetic component dominates over the poloidal one, nonaxisymmetric MRI modes grow much faster than axisymmetric modes. These results suggest the importance of the nonaxisymmetric MRI in PNSs. Thus the understandings of three-dimensional nonlinear evolutions of the MRI are necessary to reveal the explosion mechanism of core-collapse supernovae.
dc.descriptionAccepted for publication in ApJ, 24 pages,6 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0610023
dc.identifierhttp://arxiv.org/abs/astro-ph/0610023
dc.identifierAstrophys.J.655:447-457,2007
dc.identifierdoi:10.1086/509799
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181304
dc.subjectAstrophysics
dc.titleThe Effect of Neutrino Radiation on Magnetorotational Instability in Proto-Neutron Stars
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