Computer Science
Scientific paper
Oct 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978m%26p....19..211m&link_type=abstract
(Conference on Protostars and Planets, Tucson, Ariz., Jan. 3-7, 1978.) Moon and the Planets, vol. 19, Oct. 1978, p. 211-220.
Computer Science
7
Cosmic Dust, Gravitational Collapse, Planetary Evolution, Protostars, Celestial Mechanics, Cosmology, Particle Collisions, Solar System
Scientific paper
First results are presented of a calculation describing the collapse of a rotating 'dusty' protostellar cloud. The dust and gas components are calculated separately, although their interaction (e.g., radiation transport, friction, etc.) is taken into account. In the early stages of the collapse the dust is dynamically unimportant. The evolution of the dust cloud is strongly influenced by dust-dust collisions: rapid sedimentation into an equatorial dust disc is found to take place as a result of accumulative dust-dust collisions and the corresponding grain growth. Treating the dust separately from the gas allows us to compare our results with solar-system cosmochemical measurements, with celestial mechanics information and to draw conclusions about the time and place of planet formation in the collapsing cloud.
Morfill Gregor
Roeser Siegfried
Tscharnuter Walther W.
Voelk Heinrich
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