Stochastic excitation and damping of solar-type oscillations
Abstract
Description
A review on acoustic mode damping and excitation in solar-type stars is presented. Current models for linear damping rates are discussed in the light of recent low-degree solar linewidth measurements with emphasis on the frequency-dependence of damping rates of low-order modes. Recent developments in stochastic excitation models are reviewed and tested against the latest high-quality data of solar-like oscillations, such as from alpha Cen A, and against results obtained from hydrodynamical simulations.
12 pages, 13 figures, SOHO 18/GONG 2006/HelAS I: Beyond the spherical Sun, Fletcher K. (ed.), ESA SP-624, Noordwijk, invited review
12 pages, 13 figures, SOHO 18/GONG 2006/HelAS I: Beyond the spherical Sun, Fletcher K. (ed.), ESA SP-624, Noordwijk, invited review