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Effect of spin on the inspiral of binary neutron stars

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Effect of spin on the inspiral of binary neutron stars

dc.contributor.author	Tsokaros, Antonios
dc.contributor.author	Ruiz Meneses, Milton Javier
dc.contributor.author	Shapiro, Stuart L.
dc.contributor.author	Uryū, Kōji
dc.contributor.author	Paschalidis, Vasileios
dc.date.accessioned	2023-06-02T13:34:34Z
dc.date.available	2023-06-02T13:34:34Z
dc.date.issued	2019
dc.identifier.citation	Tsokaros, Antonios Ruiz Meneses, Milton Javier Shapiro Stuart L. Ury&#363, K&#333ji Paschalidis, Vasileios 2019 Effect of spin on the inspiral of binary neutron stars Physical Review D 100 2 024061-1 024061-12
dc.identifier.uri	https://hdl.handle.net/10550/87669
dc.description.abstract	We perform long-term simulations of spinning binary neutron stars, with our highest dimensionless spin being χ∼0.32. To assess the importance of spin during the inspiral, we vary the spin and also use two equations of state, one that consists of plain nuclear matter and produces compact stars (SLy) and a hybrid one that contains both nuclear and quark matter and leads to larger stars (ALF2). Using high resolution that has grid spacing Δx∼98 m on the finest refinement level, we find that the effects of spin in the phase evolution of a binary system can be larger than the one that comes from tidal forces. Our calculations demonstrate explicitly that although tidal effects are dominant for small spins (≲0.1), this is no longer true when the spins are larger, but still much smaller than the Keplerian limit.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2019, vol. 100, num. 2, p. 024061-1-024061-12
dc.subject	Astrofísica
dc.title	Effect of spin on the inspiral of binary neutron stars
dc.type	journal article
dc.date.updated	2023-06-02T13:34:34Z
dc.identifier.doi	10.1103/PhysRevD.100.024061
dc.identifier.idgrec	160085
dc.rights.accessRights	open access