Institute of Astronomy

Adiabatic and Thermal Equilibrium Mass Loss Models and Applications

SpeakerTalk DateTalk Series
Hongwei Ge29 July 2016Binary Stars Talks

Abstract

Whether the mass transfer is dynamically stable or not is one of the basic question in binary evolution. Recently, many different authors have made progress on it by different methods. We have found that the main sequence donor stars with a radiative envelope will suffer a delayed dynamically unstable mass transfer if the initial mass ratio is too large; the local thermal timescale and the global dynamical timescale of the donor stars on the first or asymptotic giant branch have nearly the same order of magnitude. So the response to both thermal and dynamical timescale mass transfer of these donor stars is important. We build the adiabatic and the thermal equilibrium mass loss model to study the response of the donors to dynamical and thermal timescale mass loss.

Presentation