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Record Details

Record 29 of 870
Numerical calculations of protostellar hydrodynamic collapse
Author and Affiliation:
Bodenheimer, P.(Lick Observatory, Santa Cruz, Calif., United States)
Black, D. C.(NASA Ames Research Center, Moffett Field, Calif., United States)
Abstract: Although 1-D (spherically symmetric) experiments of protostar collapse are highly idealized, they are the only ones which have been carried to a stage where a 'stellar' object is formed. Experiments have shown that the parameters (e.g., radius and luminosity) of the visible stellar core are sensitive to the assumed initial conditions, particularly the initial density. One of the major findings of 2-D numerical experiments is the formation of rings. Three-dimensional hydrodynamical calculations indicate that a collapsing cloud will break up into two or more orbiting subcondensations with the possible subsequent development of a stellar multiple system.
Publication Date: Jan 01, 1978
Document ID:
19790042779
(Acquired Dec 01, 1995)
Accession Number: 79A26792
Subject Category: ASTROPHYSICS
Document Type: Collected Works
Publication Information: (SEE A79-26776 10-90)
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
Lick Observatory; Santa Cruz, CA, United States
Description: 35p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: GRAVITATIONAL COLLAPSE; HYDRODYNAMICS; PROTOSTARS; STELLAR EVOLUTION; FLOW STABILITY; HYDROGEN CLOUDS; INTERSTELLAR MAGNETIC FIELDS; INTERSTELLAR MATTER; JEANS THEORY; NEBULAE; PROTOPLANETS; STELLAR MASS ACCRETION
Imprint And Other Notes: In: Protostars and planets: Studies of star formation and of the origin of the solar system. (A79-26776 10-90) Tucson, Ariz., University of Arizona Press, 1978, p. 288-322. NASA-supported research.
Availability Source: Other Sources
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