6533b873fe1ef96bd12d5898

RESEARCH PRODUCT

Crushing of Interstellar Gas Clouds in Supernova Remnants: the Role of Thermal Conduction and Radiative Losses

Andrew R. SiegelGiovanni PeresTomasz PlewaRobert RosnerFabio RealeSalvatore Orlando

subject

PhysicsShock waveShock (fluid dynamics)Astrophysics::High Energy Astrophysical PhenomenaAstrophysicsThermal conductionSHOCKSEVAPORATIONInterstellar mediumSupernovaSettore FIS/05 - Astronomia E AstrofisicaRadiative transferRayleigh–Taylor instabilitySupernova remnantAstrophysics::Galaxy Astrophysics

description

We model hydrodynamic interactions of an old supernova remnant shock wave with a small interstellar gas cloud, taking into account the effects of thermal conduction and radiative losses. In particular, we consider a representative case of a Mach 30 shock impacting on an isolated cloud with density contrast χ = 10 with respect to the ambient medium. Thermal conduction appears to be effective in suppressing the Kelvin-Helmholtz and Rayleigh-Taylor instabilities which would develop at the cloud boundaries. We demonstrate that the radiative losses play a crucial role in the dynamics of the shock-cloud interaction, dominating evolution of the shocked cloud medium.

yearjournalcountryeditionlanguage
2004-01-01AIP Conference Proceedings
https://doi.org/10.1063/1.1718476