Stochastic excitation of gravity waves by overshooting convection in solar-type stars

被引：7

作者：

Dintrans, B

Brandenburg, A

Nordlund, Å

Stein, RF

机构：

[1] Observ Midi Pyrenees, Astrophys Lab, F-31400 Toulouse, France

[2] Nord Inst Theoret Phys, DK-2100 Copenhagen O, Denmark

[3] Theoret Astrophys Ctr, DK-2100 Copenhagen O, Denmark

[4] Astron Observ, DK-2100 Copenhagen O, Denmark

[5] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2003年 / 284卷 / 01期

关键词：

stars : oscillations; convection;

D O I：

10.1023/A:1023299804687

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The excitation of gravity waves by penetrative convective plumes is investigated using 2D direct simulations of compressible convection. The oscillation field is measured by a new technique based on the projection of our simulation data onto the theoretical g-modes solutions of the associated linear eigenvalue problem. This allows us to determine both the excited modes and their corresponding amplitudes accurately.

引用

页码：237 / 240

页数：4

共 6 条

[1] Magnetic structures in a dynamo simulation [J].