Thanks to the precision of Kepler observations,  were able to measure the linewidth and amplitude of individual modes (including mixed modes) in several subgiant power spectra. We perform a forward modelling of a Kepler subgiant based on surface properties and observed frequencies. Non-adiabatic computations including a time- dependent treatment of convection give the lifetimes of radial and non-radial modes. Next, combining the lifetimes and inertias with a stochastic excitation model gives the amplitudes of the modes. We can now directly compare theoretical and observed linewidths and amplitudes of mixed-modes to obtain new constraints on our theoretical models.
|Original language||English (US)|
|Journal||EPJ Web of Conferences|
|State||Published - Sep 23 2015|
|Event||CoRoT Symposium 3, Kepler KASC-7 Joint Meeting on Space Photometry Revolution - Toulouse, France|
Duration: Jul 6 2014 → Jul 11 2014
ASJC Scopus subject areas
- Physics and Astronomy(all)