The Cassiopeia A progenitor - A consistent evolutionary picture involving supergiant mass loss

Details The Cassiopeia A progenitor - A consistent evolutionary picture involving supergiant mass loss The Cassiopeia A progenitor - A consistent evolutionary picture involving supergiant mass loss

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...220..186l&link_type=abstract

Astrophysical Journal, Part 1, vol. 220, Feb. 15, 1978, p. 186-192.

Other

40

Abundance, Stellar Evolution, Supergiant Stars, Supernova Remnants, A Stars, B Stars, Early Stars, Hydrogen, Nebulae, Stellar Envelopes

Scientific paper

The observed abundances in the Cas A supernova remnant are used together with results of evolutionary calculations of massive stars to construct an evolutionary picture for the Cas A progenitor star. A consistent picture is presented which involves two periods of mass loss, one while the star was an early-type supergiant, the other in a later evolutionary phase. A review of current observational evidence for mass loss from early-type supergiants and the proposed evolutionary picture for the Cas A progenitor suggest that some massive stars lose over half of their hydrogen envelopes prior to crossing the Hertzsprung gap.

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