# Journal article

## On the Dynamical Foundations of Alpha Disks

Abstract:

The dynamical foundations of $\alpha$ disk models are described. At the heart of the viscous formalism of accretion disk models are correlations in the fluctuating components of the disk velocity, magnetic field, and gravitational potential. We relate these correlations to the large scale mean flow dynamics used in phenomenological viscous disk models. MHD turbulence readily lends itself to the $\alpha$ formalsim, but transport by self-gravity does not. Nonlocal transport is an intrinsic prop...

Publisher copy:
10.1086/307594

### Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Astrophysics
Role:
Author
Publication date:
1999-03-02
DOI:
Keywords:
Pubs id:
pubs:500533
UUID:
uuid:3a00d3c3-41d2-435c-a109-2ede756bdb7c
Local pid:
pubs:500533
Source identifiers:
500533
Deposit date:
2015-01-05

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