Search results for "supernova: collapse"

showing 2 items of 2 documents

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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Search for Multimessenger Sources of Gravitational Waves and High-energy Neutrinos with Advanced LIGO during Its First Observing Run, ANTARES, and Ic…

2019

[EN] Astrophysical sources of gravitational waves, such as binary neutron star and black hole mergers or core-collapse supernovae, can drive relativistic outflows, giving rise to non-thermal high-energy emission. High-energy neutrinos are signatures of such outflows. The detection of gravitational waves and high-energy neutrinos from common sources could help establish the connection between the dynamics of the progenitor and the properties of the out¿ow. We searched for associated emission of gravitational waves and high-energy neutrinos from astrophysical transients with minimal assumptions using data from Advanced LIGO from its first observing run O1, and data from the ANTARES and IceCub…

Astrofísicacollapse [supernova]neutron star: binaryEVENTS GW150914Gravitació010504 meteorology & atmospheric sciencesneutrino: energy: highAstronomyRAYBinary numberbinary [neutron star]Astrophysics7. Clean energy01 natural sciencesPhysical ChemistryAtomicIceCubeneutrinoParticle and Plasma PhysicsAstronomi astrofysik och kosmologiblack holeAstronomy Astrophysics and CosmologyLIGO010303 astronomy & astrophysicsgravitational waveELECTROMAGNETIC SIGNALSQCQBSettore FIS/01PhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)astro-ph.HE[PHYS]Physics [physics]Astrophysics::Instrumentation and Methods for Astrophysicsneutrinosgravitational waves; neutrinos520 Astronomie und zugeordnete Wissenschaftenddc:observatorySupernovagravitational wavesastrophysics: densityPhysical SciencesNeutrinoAstrophysics - High Energy Astrophysical Phenomenagravitational waves; neutrinos; Astronomy and Astrophysics; Space and Planetary ScienceAstronomical and Space SciencessignaturePhysical Chemistry (incl. Structural)supernova: collapseAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstronomy & AstrophysicsGravitational wavesemission [gravitational radiation]Ones gravitacionalsCoincident0103 physical sciencesGravitational Waves Neutrinos LIGO Virgo Antares IceCubeNuclearddc:530Neutrinsenergy: high [neutrino]NeutrinosSTFCAstrophysiqueAstrophysics::Galaxy Astrophysics0105 earth and related environmental sciencesScience & TechnologyANTARESGravitational waveVirgoOrganic ChemistryAstronomyRCUKMolecularAstronomy and AstrophysicsAstronomieAstronomy and Astrophysic530 PhysikLIGOSciences de l'espaceBlack holemessengerNeutron starAntaresPhysics and AstronomySpace and Planetary ScienceFISICA APLICADA:Física::Astronomia i astrofísica [Àrees temàtiques de la UPC]gravitational radiation: emissiondensity [astrophysics]ddc:520[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]EMISSION
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