Collapse of magnetized hypermassive neutron stars in general relativity

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dc.creatorDuez, Matthew D.
dc.creatorLiu, Yuk Tung
dc.creatorShapiro, Stuart L.
dc.creatorShibata, Masaru
dc.creatorStephens, Branson C.
dc.date2005-10-24
dc.date2005-12-09
dc.date.accessioned2026-07-07T11:57:16Z
dc.date.available2026-07-07T11:57:16Z
dc.descriptionHypermassive neutron stars (HMNSs) -- equilibrium configurations supported against collapse by rapid differential rotation -- are possible transient remnants of binary neutron star mergers. Using newly developed codes for magnetohydrodynamic simulations in dynamical spacetimes, we are able to track the evolution of a magnetized HMNS in full general relativity for the first time. We find that secular angular momentum transport due to magnetic braking and the magnetorotational instability results in the collapse of an HMNS to a rotating black hole, accompanied by a gravitational wave burst. The nascent black hole is surrounded by a hot, massive torus undergoing quasistationary accretion and a collimated magnetic field. This scenario suggests that HMNS collapse is a possible candidate for the central engine of short gamma-ray bursts.
dc.descriptionAccepted for publication in Phys. Rev. Letters
dc.identifierhttps://arxiv.org/abs/astro-ph/0510653
dc.identifierhttp://arxiv.org/abs/astro-ph/0510653
dc.identifierPhys.Rev.Lett.96:031101,2006
dc.identifierdoi:10.1103/PhysRevLett.96.031101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205824
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleCollapse of magnetized hypermassive neutron stars in general relativity
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