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Gravitational wave content and stability of uniformly, rotating, triaxial neutron stars in general relativity

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Gravitational wave content and stability of uniformly, rotating, triaxial neutron stars in general relativity

dc.contributor.author	Tsokaros, Antonios
dc.contributor.author	Ruiz Meneses, Milton Javier
dc.contributor.author	Paschalidis, Vasileios
dc.contributor.author	Shapiro, Stuart L.
dc.contributor.author	Baiotti, Luca
dc.contributor.author	Uryū, Kōji
dc.date.accessioned	2023-06-02T08:29:49Z
dc.date.available	2023-06-02T08:29:49Z
dc.date.issued	2017
dc.identifier.citation	Tsokaros, Antonios Ruiz Meneses, Milton Javier Paschalidis, Vasileios Shapiro, Stuart L. Baiotti, Luca Ury&#363, K&#333ji 2017 Gravitational wave content and stability of uniformly, rotating, triaxial neutron stars in general relativity Physical Review D 95 12 1 14
dc.identifier.uri	https://hdl.handle.net/10550/87644
dc.description.abstract	Targets for ground-based gravitational wave interferometers include continuous, quasiperiodic sources of gravitational radiation, such as isolated, spinning neutron stars. In this work, we perform evolution simulations of uniformly rotating, triaxially deformed stars, the compressible analogs in general relativity of incompressible, Newtonian Jacobi ellipsoids. We investigate their stability and gravitational wave emission. We employ five models, both normal and supramassive, and track their evolution with different grid setups and resolutions, as well as with two different evolution codes. We find that all models are dynamically stable and produce a strain that is approximately one-tenth the average value of a merging binary system. We track their secular evolution and find that all our stars evolve toward axisymmetry, maintaining their uniform rotation, rotational kinetic energy, and angular momentum profiles while losing their triaxiality.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2017, vol. 95, num. 12, p. 1-14
dc.subject	Astronomia
dc.subject	Astrofísica
dc.title	Gravitational wave content and stability of uniformly, rotating, triaxial neutron stars in general relativity
dc.type	journal article
dc.date.updated	2023-06-02T08:29:50Z
dc.identifier.doi	10.1103/PhysrevD.95.124057
dc.identifier.idgrec	160074
dc.rights.accessRights	open access