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Welcome to the Accretion Disks Models Catalog |
| The present page contains a catalog of models of irradiated accretion disks around pre-main sequence stars by D'Alessio et al. (1998,1999,2001). Radial profiles of the detailed vertical structure and synthetic SEDs can be browsed and downloaded from this catalog. |
The present web page is
described
in detail in D'Alessio et al. (2004, click here for a pdf,
or gzipped
ps, format of the paper). Here we just mention
that the model includes the disk heating by stellar radiation
(considered
in a shorter wavelength regime respect to the disk own radiation
field),
viscous dissipation (using the  prescription), and ionization by energetic
particles (cosmic rays and radioactive decay). The energy of the disk
model
is transported by radiation, convection and a turbulent flux. The
disk is assumed axisymmetric, with gas and dust well mixed. The opacity
is calculated taking into account both dust and gas. For the gas, the
populations
of selected molecules are calculated assuming LTE. For the dust, we
explore
different grain size distributions.
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A complete grid of models
is
presented for different central stars with effective temperatures
going from 4000 K ( spectral type K7 ) to 10000 K ( spectral type B9.5
) and ages going from 1 Myr to 10 Myr (Ages, luminosities and stellar
radii from Siess et al PMS
tracks). The disk models have a range of values for the outer
radius, mass accretion rate, viscosity parameter , slope of dust
distribution, maximum grain size and inclination angle with respect to
observer.
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This work was supported by NASA through grants AR-09524.01-A from the Space Telescope Science Institute, and by NASA Origins of Solar Systems grant NAG5-9670. |
