Two-temperature models of old supernova remnants with ion and electron thermal conduction

Details Two-temperature models of old supernova remnants with ion and electron thermal conduction Two-temperature models of old supernova remnants with ion and electron thermal conduction

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...401..206c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 401, no. 1, p. 206-219.

Astronomy and Astrophysics

Astrophysics

26

Conductive Heat Transfer, Supernova Remnants, Temperature Distribution, Electron Energy, Hydrodynamics, Interstellar Matter, Magnetic Field Configurations

Scientific paper

To investigate the potential effects thermal conduction may have on the evolution of old supernova remnants, we present the results of 1D (spherically symmetric) numerical simulations of a remnant in a homogeneous interstellar medium for four different cases: (1) without thermal conduction; (2) with both electron and ion thermal conduction assuming equal temperatures; (3) with electron thermal conduction only, following electron and ion temperatures separately; and (4) with both electron and ion thermal conduction following separate temperatures. We followed the entire evolution until the completion of the remnant bubble collapse. Our most significant result is that in remnant evolution studies concerned principally with either the shell or bubble evolution at late times, reasonable results are obtained with single-temperature models. When the electron and ion temperatures are followed separately, however, ion thermal conduction cannot safely be ignored.

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