Statistical mechanics of 1D self-gravitating systems: the core-halo distribution

被引：39

作者：

Teles, T. N. ^{[1
]}

Levin, Y. ^{[1
]}

Pakter, R. ^{[1
]}

机构：

[1] Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2011年 / 417卷 / 01期

关键词：

gravitation; globular clusters: general; galaxies: statistics; RELAXATION; MATTER; ORIGIN; MODEL; TIME;

D O I：

10.1111/j.1745-3933.2011.01112.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study, using both theory and simulations, a system of self-gravitating sheets. A new statistical mechanics theory - free of any adjustable parameters - is derived to quantitatively predict the final stationary state achieved by this system after the process of collisionless relaxation is completed. The theory shows a very good agreement with the numerical simulations. The model sheds new light on the general mechanism of relaxation of self-gravitating systems and may help us to understand cold matter distribution in the Universe.

引用

页码：L21 / L25

页数：5

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