Constraints on the Progenitor of Cassiopeia A

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 sub(z) with a range of explosion energies and geometries. The paramet...

Full description

Saved in:
Bibliographic Details
Published in:The Astrophysical journal 2006-04, Vol.640 (2), p.891-900
Main Authors: Young, Patrick A, Fryer, Chris L, Hungerford, Aimee, Arnett, David, Rockefeller, Gabriel, Timmes, F. X, Voit, Benedict, Meakin, Casey, Eriksen, Kristoffer A
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 sub(z) 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 super(44)Ti and super(56)Ni abundances individually and as an ensemble is considered. A progenitor of 15-25 M sub(z) that loses its hydrogen envelope to a binary interaction and undergoes an energetic explosion can match all the observational constraints.
ISSN:0004-637X
1538-4357
DOI:10.1086/500108