• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Effects of temperature gradients on transverse oscillations of solar magnetic flux tubes.
【24h】

Effects of temperature gradients on transverse oscillations of solar magnetic flux tubes.

机译：温度梯度对太阳磁通管横向振荡的影响。

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

Solar magnetic flux tubes support three fundamental modes: longitudinal, transverse and torsional tube waves. Previous studies showed that the propagation of longitudinal and transverse waves along thin and isothermal magnetic flux tubes is affected by the cutoff frequency, which are global quantities that restricts the wave propagation to only those frequencies that are higher than the cutoff. It was also demonstrated that the tubes respond to freely propagating longitudinal and transverse tube waves by oscillating at the corresponding cutoff frequency. No cutoff frequency was found for torsional waves propagating along thin and isothermal magnetic flux tubes. Since the solar atmosphere is not isothermal, the effects of different temperature gradients on the cutoff for transverse tube waves are investigated. It is shown that this cutoff frequency becomes a local quantity and its physical meaning is different than the global cutoff. The obtained results are used to explain the observed frequencies of oscillations of solar magnetic flux tubes.
机译：太阳能磁通管支持三种基本模式：纵向，横向和扭转管波。先前的研究表明，纵向波和横向波沿着薄且等温的磁通量管的传播受截止频率的影响，截止频率是将波的传播限制为仅高于截止频率的整体量。还证明了这些管通过以相应的截止频率振荡来响应自由传播的纵向和横向管波。没有发现沿薄且等温的磁通管传播的扭转波的截止频率。由于太阳大气不是等温的，因此研究了不同温度梯度对横管波截止的影响。结果表明，该截止频率成为局部量，其物理意义与全局截止不同。获得的结果用于解释太阳磁通量管的振荡频率。

著录项

  • 作者

    Subramaniam, Shilpa.;

  • 作者单位

    The University of Texas at Arlington.;

  • 授予单位 The University of Texas at Arlington.;
  • 学科 Physics Astronomy and Astrophysics.
  • 学位 M.S.
  • 年度 2006
  • 页码 79 p.
  • 总页数 79
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 天文学;
  • 关键词

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