Self-regulated model of galactic spiral structure formation

被引：1

作者：

Cartin, D ^{[1
]}

Khanna, G ^{[1
]}

机构：

[1] Long Isl Univ, Southampton Coll, Div Nat Sci, Southampton, NY 11968 USA

来源：

PHYSICAL REVIEW E | 2002年 / 65卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.65.016120

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The presence of spiral structure in isolated galaxies is a problem that has only been partially explained by theoretical models. Because the rate and pattern of star formation in the disk must depend only on mechanisms internal to the disk, we may think of the spiral galaxy as a self-regulated system far from equilibrium. This paper uses this idea to look at a reaction-diffusion model for the formation of spiral structures in certain types of galaxies. In numerical runs of the model, spiral structure forms and persists over several revolutions of the disk, but eventually dies out.

引用

页数：7

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