ON NONLINEAR RADIAL OSCILLATIONS IN CONVECTIVE RR LYRAE STARS .1. THE MATHEMATICAL-DESCRIPTION

被引：23

作者：

GEHMEYR, M

机构：

[1] Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos

来源：

ASTROPHYSICAL JOURNAL | 1992年 / 399卷 / 01期

关键词：

CONVECTION; STARS; INTERIORS; OSCILLATIONS; VARIABLES; OTHER (RR LYRAE);

D O I：

10.1086/171921

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A set of equations for the computation of nonlinear radial oscillations in convective variable stars is proposed. It consists of the radiation hydrodynamical equations coupled with a time-dependent phenomenological model for the turbulent-convective energy transport. Some elementary properties of the latter are discussed. The set of the finite difference equations are written in an arbitrary coordinate system for each node. They are coupled to an adaptive-grid algorithm which is designed to resolve the ionization regions properly.

引用

页码：265 / 271

页数：7

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