Constraints on the progenitor of cassiopeia A

Patrick A. Young, Chris L. Fryer, Aimee Hungerford, David Arnett, Gabriel Rockefeller, F. X. Timmes, Benedict Voit, Casey Meakin, Kristoffer A. Eriksen

Research output: Contribution to journalArticlepeer-review

140 Scopus citations


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 languageEnglish (US)
Pages (from-to)891-900
Number of pages10
JournalAstrophysical Journal
Issue number2 I
StatePublished - Apr 1 2006


  • Hydrodynamics
  • Nuclear reactions, nucleosynthesis, abundances
  • Stars: Evolution
  • Supernova remnants
  • Supernovae: individual (Cassiopeia A)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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