Search results for " ISM: individual objects: Vela SNR"

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Hydrodynamic modelling of ejecta shrapnel in the Vela supernova remnant

2013

Many supernova remnants (SNRs) are characterized by a knotty ejecta structure. The Vela SNR is an excellent example of remnant in which detached clumps of ejecta are visible as X-ray emitting bullets that have been observed and studied in great detail. We aim at modelling the evolution of ejecta shrapnel in the Vela SNR, investigating the role of their initial parameters (position and density) and addressing the effects of thermal conduction and radiative losses. We performed a set of 2-D hydrodynamic simulations describing the evolution of a density inhomogeneity in the ejecta profile. We explored different initial setups. We found that the final position of the shrapnel is very sensitive …

PhysicsShock waveHigh Energy Astrophysical Phenomena (astro-ph.HE)Vela Supernova RemnantAstrophysics::High Energy Astrophysical Phenomenanumerical ISM: individual objects: Vela SNR ISM: kinematics and dynamics ISM: supernova remnants [hydrodynamics shock waves methods]AstronomyFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsThermal conductionVelahydrodynamics shock waves methods: numerical ISM: individual objects: Vela SNR ISM: kinematics and dynamics ISM: supernova remnantsSupernovaSettore FIS/05 - Astronomia E AstrofisicaSpace and Planetary ScienceRadiative transferAstrophysics::Solar and Stellar AstrophysicsDensity contrastEjectaAstrophysics - High Energy Astrophysical PhenomenaAstrophysics::Galaxy Astrophysics
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