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Radial migration of preplanetary material - Implications for the accretion time scale problemRadial drift of planetesimals due to density wave interaction with the solar nebula is considered. The mechanism is most effective for large masses and provides mobility over a size range where aerodynamic drag is unimportant. The process could shorten accretion time scales to O(100,000-1,000,000 years) throughout the solar system. Accumulation stalls down when growing objects are massive enough to open gaps in the gas disk. Implications of this process for current cosmogonic models are discussed.
Document ID
19850030580
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hourigan, K.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena, CA; Commonwealth Scientific and Industrial Research Organization, Div. of Energy Technology, Highett Victoria, Australia)
Ward, W. R.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1984
Publication Information
Publication: Icarus
Volume: 60
ISSN: 0019-1035
Subject Category
Astrophysics
Accession Number
85A12731
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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