Search results for " supernovae: individual: SN 1006"

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ROLE OF EJECTA CLUMPING AND BACK-REACTION OF ACCELERATED COSMIC RAYS IN THE EVOLUTION OF TYPE Ia SUPERNOVA REMNANTS

2012

We investigate the role played by initial clumping of ejecta and by efficient acceleration of cosmic rays (CRs) in determining the density structure of the post-shock region of a Type Ia supernova remnant (SNR) through detailed 3D MHD modeling. Our model describes the expansion of a SNR through a magnetized interstellar medium (ISM), including the initial clumping of ejecta and the effects on shock dynamics due to back-reaction of accelerated CRs. The model predictions are compared to the observations of SN 1006. We found that the back-reaction of accelerated CRs alone cannot reproduce the observed separation between the forward shock (FS) and the contact discontinuity (CD) unless the energ…

High Energy Astrophysical Phenomena (astro-ph.HE)Shock wavePhysicsAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstronomy and AstrophysicsCosmic rayAstrophysicsShock (mechanics)cosmic rays instabilities ISM: supernova remnants magnetohydrodynamics: MHD shock waves supernovae: individual: SN 1006Interstellar mediumSupernovaSpace and Planetary ScienceAstrophysics::Solar and Stellar AstrophysicsMagnetohydrodynamicsAstrophysics - High Energy Astrophysical PhenomenaEjectaSupernova remnantAstrophysics::Galaxy AstrophysicsThe Astrophysical Journal
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