Speaker
Mr
Magic Zazralt
(Niels Bohr Institute)
Description
Theoretical atmosphere models provide the basis for a variety of
applications for
astronomy. In one-dimensional (1D) atmosphere models, convection is
usually treated
with the mixing-length theory. However, this theory is by far not
flawless and the
superadiabatic regime is poorly rendered. Due to the increasing
computational power,
we are now capable to compute large grids of realistic three-
dimensional (3D)
hydrodynamical model atmospheres with the realistic treatment of the
radiative
transfer. We have computed the Stagger-grid, a comprehensive grid of
3D atmosphere
models of late-type stars. In the course of my talk, I'll present in detail
the properties
of 3D stellar atmosphere models and the its interaction with the
magnetic field.
Primary author
Mr
Magic Zazralt
(Niels Bohr Institute)
Co-authors
Prof.
Martin Asplund
(Mount Stromlo Observatory)
Dr
Remo Collet
(Mount Stromlo Observatory)
