Search results for "gravitational radiation: signature"

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Gravitational wave signature of proto-neutron star convection: I. MHD numerical simulations

2021

Gravitational waves provide a unique and powerful opportunity to constrain the dynamics in the interior of proto-neutron stars during core collapse supernovae. Convective motions play an important role in generating neutron stars magnetic fields, which could explain magnetar formation in the presence of fast rotation. We compute the gravitational wave emission from proto-neutron star convection and its associated dynamo, by post-processing three-dimensional MHD simulations of a model restricted to the convective zone in the anelastic approximation. We consider two different proto-neutron star structures representative of early times (with a convective layer) and late times (when the star is…

010504 meteorology & atmospheric sciencesdimension: 3neutron star: magnetic fieldtorusAstrophysicsMagnetar01 natural sciencesrotationstarstrong fieldMagnetarsAstrophysics::Solar and Stellar Astrophysicsgravitational radiation: spectrumgravitational radiation: signatureSupernova core collapse010303 astronomy & astrophysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)PhysicsMethods numerical[SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]formationscalingSupernovaAmplitudeAstrophysics - Solar and Stellar AstrophysicsConvection zoneAstrophysics - High Energy Astrophysical PhenomenaDynamosupernova: collapseprotoneutron starFOS: Physical sciencesConvectionsymmetry: axialGravitational waves0103 physical sciencesstructurenumerical calculationsSolar and Stellar Astrophysics (astro-ph.SR)0105 earth and related environmental sciencesGravitational waveAstronomy and AstrophysicsmagnetarNeutron star13. Climate actionSpace and Planetary Scienceefficiencygravitational radiation: emissionMagnetohydrodynamics[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph][PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph]
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