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New composite models of partially ionized protoplanetary disks

Abstract:

We study an accretion disk in which three different regions may coexist: MHD turbulent regions, dead zones and gravitationally unstable regions. Although the dead zones are stable, there is some transport due to the Reynolds stress associated with waves emitted from the turbulent layers. We model the transport in each of the different regions by its own $\alpha$ parameter, this being 10 to $10^{3}$ times smaller in dead zones than in active layers. In gravitationally unstable regions, $\alpha...

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Publisher copy:
10.1086/592597

Authors


Publisher:
Institute of Physics Publishing Publisher's website
Journal:
Astrophysical Journal
Volume:
689
Issue:
1
Pages:
532-538
Publication date:
2008-08-28
DOI:
EISSN:
1538-4357
ISSN:
0004-637X
URN:
uuid:00e09357-1fc2-461c-a944-3bba86ff1214
Source identifiers:
352107
Local pid:
pubs:352107
Language:
English
Keywords:

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