One-dimensional self-gravitating sheet model and Lynden-Bell statistics.
One-dimensional self-gravitating sheet model and Lynden-Bell statistics.
复制标题
一维自引力片模型和 Lynden-Bell 统计。
DOI：
10.1103/physreve.78.041114
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Y. Yamaguchi
中科院分区：
文献类型：
--
作者：
Y. Yamaguchi
林登-贝尔统计已经被提出来解释星系之间的共同特征，这些星系不处于热平衡状态。在一维自引力片模型中，除了维里平衡附近的初始态外，该统计不能成功地再现能量分布。击穿是由动态加速的高能片引起的，因此通过关注低能片来检查修改的统计，以澄清林登-贝尔统计的基本思想的有效性。该修正在初始维里比的宽范围内提高了理论和数值能量分布之间的一致性。
The Lynden-Bell statistics has been proposed to explain common features among galaxies, which are not in thermal equilibrium. The statistics is not successful to reproduce energy distribution in the one-dimensional self-gravitating sheet model except for initial states near the virial equilibrium. The breakdown is caused by dynamically accelerated high-energy sheets, and hence a modified statistics is examined by focusing on low-energy sheets in order to clarify validity of the basic idea of the Lynden-Bell statistics. The modification improves agreement between the theoretical and numerical energy distributions in a wide interval of the initial virial ratio.
磁化纯电子等离子体中二维涡旋晶体的形成和弛豫
DOI：
--
发表时间：
2007
期刊：
Physical Review Letters 99
影响因子：
--
作者：
Y. Kiwamoto;N. Hashizume;Y. Soga;J. Aoki;Y. Kawai
通讯作者：
Y. Kawai