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High temperatures in the early solar nebulaOne fundamental controversy about terrestrial planet and asteroid formation is the discrepancy between meteoritical evidence for high temperatures (1500 to 2000 K) in the inner solar nebula, and much lower theoretical temperature predictions on the basis of models of viscous accretion disks that neglect compressional heating of infalling gas. It is shown here that rigorous numerical calculations of the collapse of a rotating, three-dimensional presolar nebula are capable of producing temperatures on the order of 1500 K in the asteroid region (2.5 astronomical units), in either nearly axisymmetric or strongly nonaxisymmetric nebula models. The latter models may permit significant thermal cycling of solid components in the early inner solar nebula.
Document ID
19880060660
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Boss, Alan P.
(Carnegie Institution of Washington Washington, DC, United States)
Date Acquired
August 13, 2013
Publication Date
July 29, 1988
Publication Information
Publication: Science
Volume: 241
ISSN: 0036-8075
Subject Category
Lunar And Planetary Exploration
Accession Number
88A47887
Distribution Limits
Public
Copyright
Other

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