Search results for "supernovae: individual: SN 1987A"

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3D MHD modeling of the expanding remnant of SN 1987A : role of magnetic field and non-thermal radio emission

2018

Aims. We investigate the role played by a pre-supernova (SN) ambient magnetic field on the dynamics of the expanding remnant of SN 1987A and the origin and evolution of the radio emission from the remnant, in particular, during the interaction of the blast wave with the nebula surrounding the SN. Methods. We model the evolution of SN 1987A from the breakout of the shock wave at the stellar surface to the expansion of its remnant through the surrounding nebula by 3D MHD simulations. The model considers the radiative cooling, the deviations from equilibrium of ionization, the deviation from temperature-equilibration between electrons and ions, and a plausible configuration of the pre-SN ambie…

Shock waveH II regionMagnetohydrodynamics (MHD)shock waveAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesField strengthISM [radio continuum]AstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesmagnetohydrodynamics (MHD)Radio spectrumindividual: SN 1987A [supernovae]0103 physical sciencesISM [X-rays]010303 astronomy & astrophysicsBlast waveISM: supernova remnantAstrophysics::Galaxy AstrophysicsPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Nebulasupernovae: individual: SN 1987A010308 nuclear & particles physicssupernova remnants [ISM]Astronomy and Astrophysicsshock wavesX-rays: ISMMagnetic fieldradio continuum: ISMSpace and Planetary ScienceMagnetohydrodynamicsAstrophysics - High Energy Astrophysical Phenomena
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Supernova 1987A: a Template to Link Supernovae to their Remnants

2015

The emission of supernova remnants reflects the properties of both the progenitor supernovae and the surrounding environment. The complex morphology of the remnants, however, hampers the disentanglement of the two contributions. Here we aim at identifying the imprint of SN 1987A on the X-ray emission of its remnant and at constraining the structure of the environment surrounding the supernova. We performed high-resolution hydrodynamic simulations describing SN 1987A soon after the core-collapse and the following three-dimensional expansion of its remnant between days 1 and 15000 after the supernova. We demonstrated that the physical model reproducing the main observables of SN 1987A during …

Shock wavesupernovae: individual (SN 1987A)Astrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsPower lawSpectral lineGravitational collapseAstrophysics::Solar and Stellar AstrophysicsHydrodynamics instabilities ISM: supernova remnants shock waves supernovae: individual (SN 1987A) X-rays: ISM.EjectaAstrophysics::Galaxy AstrophysicsISM: supernova remnantsHigh Energy Astrophysical Phenomena (astro-ph.HE)PhysicsNebulaAstronomy and AstrophysicsObservableshock wavesX-rays: ISMhydrodynamics instabilities ISM: supernova remnants shock waves supernovae: individual: SN 1987A X-rays: ISMSupernovainstabilitiesSpace and Planetary ScienceHydrodynamicsAstrophysics - High Energy Astrophysical Phenomena
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