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Formation of Massive Stars by Growing Accretion

Published online by Cambridge University Press:  30 March 2016

André Maeder
André Maeder*
Affiliation:
Geneva Observatory, CH-1290 Sauverny, Switzerland

Abstract

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We calculate pre-Main Sequence evolutionary tracks with accretion rates growing with the actual stellar masses. We show that accretion rates growing at least as M1.5 are necessary to fit the constraints on the lifetimes and HR diagram. Most interestingly, such accretion rates growing with the stellar mass well correspond to those derived from observations of mass outflows (Churchwell 2000; Henning et al. 2000). These rates also lie in the permitted region of the dynamical models.

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 12: Highlights of Astronomy. As presented at the XXIVth General Assembly of the IAU, 2000 , 2002 , pp. 170 - 172
Copyright
Copyright © Astronomical Society of Pacific 2002

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