Dust grain properties in atmospheres of AGB stars

Details Dust grain properties in atmospheres of AGB stars Dust grain properties in atmospheres of AGB stars

2002-09-12

arxiv.org/abs/astro-ph/0209247v1

IAU Symp. 210 (2003) A13

Astronomy and Astrophysics

Astrophysics

10 pages, 3 figures. To appear in: Modelling of Stellar Atmospheres, N.E. Piskunov, W.W. Weiss, D.F. Gray (eds.), IAU Symposiu

Scientific paper

We present self-consistent dynamical models for dust driven winds of carbon-rich AGB stars. The models are based on the coupled system of frequency-dependent radiation hydrodynamics and time-dependent dust formation. We investigate in detail how the wind properties of the models are influenced by the micro-physical properties of the dust grains that enter as parameters. The models are now at a level where it is necessary to be quantitatively consistent when choosing the dust properties that enters as input into the models. At our current level of sophistication the choice of dust parameters is significant for the derived outflow velocity, the degree of condensation and the estimated mass loss rates of the models. In the transition between models with and without mass-loss the choice ofmicro-physical parameters turns out to be very significant for whether a particular set of stellar parameters will give rise to a dust-driven mass loss or not.

Affiliated with

Also associated with

No associations

Rating

Dust grain properties in atmospheres of AGB stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dust grain properties in atmospheres of AGB stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dust grain properties in atmospheres of AGB stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-591936