The Dynamical Evolution of Be star disks

Details The Dynamical Evolution of Be star disks The Dynamical Evolution of Be star disks

2010-10-12

arxiv.org/abs/1010.2543v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

IAU 272 symposium proceedings, 3 pages, 1 figure

Scientific paper

We present a novel theoretical tool to analyze the dynamical behaviour of a Be disk fed by non-constant decretion rates. It is mainly based on the computer code HDUST, a fully three-dimensional radiative transfer code that has been successfully applied to study several Be systems so far, and the SINGLEBE code that solves the 1D viscous diffusion problem. We have computed models of the temporal evolution of different types of Be star disks for different dynamical scenarios. By showing the behaviour of a large number of observables (interferometry, polarization, photometry and spectral line profiles), we show how it is possible to infer from observations some key dynamical parameters of the disk.

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