Journal ArticleDOI
Angular Momentum Evolution of Young Stars and Disks
TLDR
In this article, the authors review the observations regarding the angular momentum of molecular cloud cores, of proto stars, and of the disks, binary orbits, and spin of young stars.Abstract:
The effects of angular momentum play an important role in star formation. However, when a young star emerges on the Hertzsprung-Russell diagram it is generally rotating slowly. This article reviews the observations regarding the angular momentum of molecular cloud cores, of proto stars, and of the disks, binary orbits, and spin of young stars. Various physical processes for transfer of angular momentum during the star formation process are discussed, including magnetic braking during the molecular cloud stage; fragmentation during the protostar collapse; viscosity, magnetic torques, and gravitational torques in disks; and magnetically driven mass loss in a star-disk system. Important problems for future study are highlighted.read more
Citations
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Journal ArticleDOI
Control of star formation by supersonic turbulence
TL;DR: A review of the successes and problems of both the classical dynamical theory and the standard theory of magnetostatic support, from both observational and theoretical perspectives, is given in this paper.
Journal ArticleDOI
Toward Understanding Massive Star Formation
Hans Zinnecker,Harold W. Yorke +1 more
TL;DR: In this article, a basic description of the collapse of a massive molecular core and a critical discussion of the three competing concepts of massive star formation are presented, including monolithic collapse in isolated cores, competitive accretion in a protocluster environment, stellar collisions and mergers in very dense systems.
Control of Star Formation by Supersonic Turbulence
TL;DR: A review of the successes and problems of both the classical dynamical theory and the standard theory of magnetostatic support, from both observational and theoretical perspectives, is given in this article.
Journal ArticleDOI
Cold Dark Clouds: The Initial Conditions for Star Formation
Edwin A. Bergin,Mario Tafalla +1 more
TL;DR: In this paper, the authors discuss recent progress in their study, including the newly discovered IR dark clouds that are likely precursors to stellar clusters, and provide a unique glimpse of the conditions prior to stellar birth.
Journal ArticleDOI
The Evolution of Rotating Stars
André Maeder and,Georges Meynet +1 more
TL;DR: In this paper, the main physical effects to be considered in the building of evolutionary models of rotating stars on the Upper Main Sequence (MS) were reviewed, and the internal rotation of the stars was discussed.
References
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Book
Theory of rotating stars
TL;DR: The Princeton Legacy Library as mentioned in this paper is a collection of more than 10,000 books from the distinguished backlist of Princeton University Press since its founding in 1905, including a large number of papers on rotating stars.
Book
Evolution of the Solar System
Hannes Alfvén,Gustaf Arrhenius +1 more
TL;DR: In this paper, the origin and evolution of the solar system are analyzed, followed by experimental studies of plasma-solid reactions and chemical and mineralogical analyses of meteorites and lunar and terrestrial samples.