Abstract
We compare a suite of three-dimensional explosion calculations and stellar models incorporating advanced physics with observational constraints on the progenitor of Cassiopeia A. We consider binary and single stars from 16 to 40 M⊙ with a range of explosion energies and geometries. The parameter space allowed by observations of nitrogen-rich high-velocity ejecta, ejecta mass, compact remnant mass, and 44Ti and 56Ni abundances individually and as an ensemble is considered. A progenitor of 15-25 M⊙ that loses its hydrogen envelope to a binary interaction and undergoes an energetic explosion can match all the observational constraints.
Original language | English (US) |
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Pages (from-to) | 891-900 |
Number of pages | 10 |
Journal | Astrophysical Journal |
Volume | 640 |
Issue number | 2 I |
DOIs | |
State | Published - Apr 1 2006 |
Keywords
- Hydrodynamics
- Nuclear reactions, nucleosynthesis, abundances
- Stars: Evolution
- Supernova remnants
- Supernovae: individual (Cassiopeia A)
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science