Constraints on the progenitor of Cassiopeia A

被引：143

作者：

Young, PA

Fryer, CL

Hungerford, A

Arnett, D

Rockefeller, G

Timmes, FX

Voit, B

Meakin, C

Eriksen, KA

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[3] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[4] Univ Texas, Dept Comp Sci, Richardson, TX 75080 USA

来源：

ASTROPHYSICAL JOURNAL | 2006年 / 640卷 / 02期

关键词：

hydrodynamics; nuclear reactions; nucleosynthesis; abundances; stars : evolution; supernova remnants; supernovae : individual (Cassiopeia A);

D O I：

10.1086/500108

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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-circle dot 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 Ti-44 and Ni-56 abundances individually and as an ensemble is considered. A progenitor of 15-25 M-circle dot that loses its hydrogen envelope to a binary interaction and undergoes an energetic explosion can match all the observational constraints.

引用

页码：891 / 900

页数：10

共 53 条

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