Evolution of the pulsation properties of hot pre-white dwarf stars.
Abstract
The authors have solved the equations of linear, nonradial adiabatic oscillation for evolutionary pre-white dwarf (PWD) models. They have computed periods, eigenfunctions, weight functions, and rates of period change (dP/dt) for high-order dipole and quadrupole gravity mode oscillations in spherical, nonrotating PWD models with M* = 0.60 - 0.95 M_sun; and log(L/L_sun;) = 3.0 - 1.0. The recently measured period decrease of the pulsating star PG 1159-035 is consistent with the limits provided by these models.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 1985
- DOI:
- 10.1086/163398
- Bibcode:
- 1985ApJ...295..547K
- Keywords:
-
- Hot Stars;
- Pulsars;
- Stellar Evolution;
- Stellar Oscillations;
- White Dwarf Stars;
- Stellar Luminosity;
- Stellar Models;
- Variational Principles;
- Weighting Functions;
- Astrophysics