A Search for the Cassiopeia A SN Progenitor

Details A Search for the Cassiopeia A SN Progenitor A Search for the Cassiopeia A SN Progenitor

Feb 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002rmxac..12...94p&link_type=abstract

Ionized Gaseous Nebulae, a Conference to Celebrate the 60th Birthdays of Silvia Torres-Peimbert and Manuel Peimbert, Mexico City

Astronomy and Astrophysics

Astronomy

2

Instabilities, Line: Profiles, Planetary Nebulae, Stars: Wolf-Rayet, Stars: Mass-Loss

Scientific paper

The observed abundances in the Cas A supernova remnant (SNR) are used together with the results of evolutionary calculations of massive stars to construct an evolutionary picture for the Cas A progenitor star. From the structure shown by the remnant, it is believed that the precursor star was a WR with a lifetime of 10^4 years. With this assumption and the chemical abundances produced during the stellar nucleosynthesis we present results which suggest that the precursor of Cas A was a star with a mass between 29-30 M[ scriptstyle sun ]on the ZAMS.

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