Effects of back warming in cocoon stars

Details Effects of back warming in cocoon stars Effects of back warming in cocoon stars

Jun 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976natur.261..674d&link_type=abstract

Nature, vol. 261, June 24, 1976, p. 674, 675.

Astronomy and Astrophysics

Astronomy

1

Cosmic Dust, Early Stars, Reflected Waves, Stellar Envelopes, Stellar Evolution, Astronomical Models, Electromagnetic Absorption, Stellar Atmospheres, Stellar Luminosity

Scientific paper

A portion of the radiation absorbed by a dust shell surrounding a young star is re-emitted and returned to the central star - a process termed 'back warming'. The effects of back warming on the evolution of a star with a surrounding dust shell are analyzed using a model previously proposed by the authors (1974) for a contracting star receiving radiation from an external source. It is shown that the effects of back warming are strongly dependent on the thickness of the shell. A dust shell thin enough that light from the parent star can be observed has no significant effect. A thick dust shell masks the main characteristics of the star and substantially retards its evolution.

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