Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21733705p&link_type=abstract
American Astronomical Society, AAS Meeting #217, #337.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
Type Ia supernovae are thought to be due to thermonuclear explosions of carbon-oxygen white dwarfs in close binary systems. In the single-degenerate scenario, the companion star is non-degenerate and can be significantly altered by the explosion. We explore this interaction by means of three-dimensional adaptive mesh refinement (AMR) simulations using the FLASH code. We consider several different companion types, including red giants, main-sequence-like stars, and helium stars, and we include the symmetry-breaking effects of orbital motion, Roche-lobe overflow, and pre-supernova mass loss. Our analysis focuses on mass loss by the companion, contamination of the companion's atmosphere by supernova ejecta, and post-supernova motion of the companion relative to the ejecta. We discuss the implications of our results for variation in Type Ia supernova properties and searches for remnant companion stars.
Pan Kuo-Chuan
Ricker Paul M.
Taam Ronald E.
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