Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Turbulent Convection in Thin Accretion Disks   A self-consistent solution for a thin accretion disk with turbulent
convection is presented. The disk viscosity and the convective flux are derived
from a physical model for turbulence, and expressed in terms of the local
physical conditions of the disk which, in turn, are controlled by the former
two. In the gas pressure region, two distinct solutions are obtained. In one,
the convective flux is much larger than the radiative flux and the blackbody
region extends over the entire gas pressure region and could also extend down
to the inner boundary of the disk. In this solution the temperature profile is
close to adiabatic. In the other solution, the convective flux is about a third
of the total flux, and there exist the gas pressure blackbody and electron
scattering regions as well as the radiation pressure region. In the radiation
pressure region, the temperature profile is very close to adiabatic, and the
disk is geometrically thin and optically thick even for super Eddington
accretion rates. The fraction of the convective flux, out of the total flux,
increases with the accretion rate, and for accretion rates comparable to the
Eddington limit is close to 1. This variation stabilizes the, radiation
pressure region, so that the disk regions are secularily stable.

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The categories of this paper are: cmp-lg
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The categories of this paper are: atom-ph
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
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The categories of this paper are: supr-con
16
The categories of this paper are: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: q-fin
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: mtrl-th
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The categories of this paper are: eess