Chemistry of Collapse and Disk Accretion

Details Chemistry of Collapse and Disk Accretion Chemistry of Collapse and Disk Accretion

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..511c&link_type=abstract

Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 July

Astronomy and Astrophysics

Astronomy

Scientific paper

An important issue for the ISM-comet connection is to determine under what conditions largely unmodified interstellar matter could first arrive in the protosolar nebula. New detailed calculations will be presented of the chemistry that occurs in a rotating collapse. This allows the composition of accreted interstellar material to be studied as a function of entry position on the nebular disk. The preshock and postshock chemistry of volatile material is then followed as it is heated and allowed to cool and recondense onto dust grains. This is the first study to compute in detail how ISM gas and ices are processed as they collapse down onto the disk and through the accretion shock and the relation of this to the volatiles in comets.
Reference
Chemical Evolution in Protostellar Envelopes - Cocoon Chemistry Rodgers S.D. & Charnley S.B. (2003) Astrophys. J. to appear March 1
The Interstellar Chemistry of Protostellar Disks Charnley S. B. (1995) Ap&SS 224 441

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