GRAVITY MODE-INSTABILITIES IN DIFFERENTIALLY ROTATING-DISKS

被引：8
作者：
GLATZEL, W
机构：
[1] Max-Planck-Institut für Astrophysik, Karl Schwarzschild-Straße 1, Garching bei München
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1990年 / 242卷 / 02期
关键词：
D O I：
10.1093/mnras/242.3.338
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The modal structure of internal gravity modes in shearing systems is investigated using analytical methods. If the buoyancy frequency profile satisfies certain symmetry conditions, two types of instabilities are found - one of which can be explained by over-reflection, the other by mode resonances. Due to the intrinsically low pattern speed of gravity waves, the shear-driven instabilities occur predominantly at low shear rates. Their importance for accretion flows and differentially rotating stars is stressed. © 1990 Oxford University Press. All rights reserved.
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页码：338 / 352
页数：15
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