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Magnetohydrodynamic Simulations of Self-Consistent Rotating Neutron Stars with Mixed Poloidal and Toroidal Magnetic Fields

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Magnetohydrodynamic Simulations of Self-Consistent Rotating Neutron Stars with Mixed Poloidal and Toroidal Magnetic Fields

dc.contributor.author	Tsokaros, Antonios
dc.contributor.author	Ruiz Meneses, Milton Javier
dc.contributor.author	Shapiro, Stuart L.
dc.contributor.author	Uryū, Kōji
dc.date.accessioned	2023-06-05T08:11:19Z
dc.date.available	2023-06-05T08:11:19Z
dc.date.issued	2022
dc.identifier.citation	Tsokaros, Antonios Ruiz Meneses, Milton Javier Shapiro, Stuart L. Ury&#363, K&#333ji 2022 Magnetohydrodynamic Simulations of Self-Consistent Rotating Neutron Stars with Mixed Poloidal and Toroidal Magnetic Fields Physical Review Letters 128 6 1 8
dc.identifier.uri	https://hdl.handle.net/10550/87700
dc.description.abstract	We perform the first magnetohydrodynamic simulations in full general relativity of self-consistent rotating neutron stars (NSs) with ultrastrong mixed poloidal and toroidal magnetic fields. The initial uniformly rotating NS models are computed assuming perfect conductivity, stationarity, and axisymmetry. Although the specific geometry of the mixed field configuration can delay or accelerate the development of various instabilities known from analytic perturbative studies, all our models finally succumb to them. Differential rotation is developed spontaneously in the cores of our magnetars which, after sufficient time, is converted back to uniform rotation. The rapidly rotating magnetars show a significant amount of ejecta, which can be responsible for transient kilonova signatures. However no highly collimated, helical magnetic fields or incipient jets, which are necessary for gamma-ray bursts, arise at the poles of these magnetars by the time our simulations are terminated.
dc.language.iso	eng
dc.relation.ispartof	Physical Review Letters, 2022, vol. 128, num. 6, p. 1-8
dc.subject	Astronomia
dc.subject	Astrofísica
dc.title	Magnetohydrodynamic Simulations of Self-Consistent Rotating Neutron Stars with Mixed Poloidal and Toroidal Magnetic Fields
dc.type	journal article
dc.date.updated	2023-06-05T08:11:19Z
dc.identifier.doi	10.1103/PhysRevLett.128.061101
dc.identifier.idgrec	160098
dc.rights.accessRights	open access