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Fragmentation of elongated cylindrical clouds. IV - Clouds with solid-body rotation about an arbitrary axisResults of 3D hydrodynamic collapse calculations of elongated isothermal clouds with solid-body rotation about an arbitrary axis are presented. Four different modes of fragmentation are identified. In all evolutions that formed more than one fragment, a structural fragmentation mode occurred first, forming condensations on each side of the cylinder. It is shown that gravitational torques and tidal effects control most of the fragmentation and coalescence which occur. The fragmentation processes and gravitational torques can also reduce the fragment's specific angular momentum by up to two orders of magnitude compared to that of the parent cloud. This is consistent with the inferred value of the specific angular momentum of the initial protosolar nebula.
Document ID
19930032445
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Bonnell, Ian
(Montreal Univ.; Observatoire du Mont Megantic, Canada)
Arcoragi, Jean-Pierre
(Montreal Univ.; Observatoire du Mont Megantic, Montreal; Canadian Inst. for Theoretical Astrophysics, Toronto, Canada)
Martel, Hugo
(Texas Univ. Austin, United States)
Bastien, Pierre
(Montreal Univ.; Observatoire du Mont Megantic, Canada)
Date Acquired
August 15, 2013
Publication Date
December 1, 1992
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 400
Issue: 2
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
93A16442
Funding Number(s)
CONTRACT_GRANT: NAGW-2399
Distribution Limits
Public
Copyright
Other

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