• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physics of plasmas >Effects of positron density and temperature on ion-acoustic solitary wavesin a magnetized electron-positron-ion plasma: Oblique propagation
【24h】

Effects of positron density and temperature on ion-acoustic solitary wavesin a magnetized electron-positron-ion plasma: Oblique propagation

机译：正电子的密度和温度对磁化的电子-正电子离子等离子体中离子声孤立波的影响：倾斜传播

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ion-acoustic (IA) solitary waves are investigated in a magnetized three-component plasmaconsisting of cold ions, isothermal hot electrons, and positrons. The basic set of fluid equations isreduced to the Korteweg de Vries equation using the standard reductive perturbation (multiple-scale)technique. Theoretical and numerical analyses confirm significant effects of the presence ofpositrons and the dependence of the electron to positron temperature ratio on the amplitude and thewidth of IA solitary waves. It is shown that the rarefactive and compressive IA solitary excitationscan propagate when the propagation angle θ satisfies 0 ≤ π/2 and π/2<θ≤ π,respectively.Also, it is remarked that the amplitude of the rarefactive and compressive IA solitary excitations isnot affected by the magnitude of external magnetic field B0, whereas their width depends strictly onB0. The numerical analysis has been done based on the typical numerical data from a pulsarmagnetosphere
机译：在由冷离子，等温热电子和正电子组成的磁化三组分等离子体中研究了离子声（IA）孤波。使用标准的还原摄动（多尺度）技术，将流体方程组基本化为Korteweg de Vries方程。理论和数值分析证实了正电子的存在以及电子与正电子温度比对IA孤波振幅和宽度的依赖性的显着影响。结果表明，当传播角θ分别满足0≤π/ 2和π/ 2 <θ≤π时，稀疏和压缩IA孤激励可以进行扫描。另外，还注意到稀疏和压缩IA孤激励的幅度。不受外部磁场B0大小的影响，而它们的宽度严格取决于B0。数值分析是基于脉动环流层的典型数值数据完成的

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号