• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Astrophysical journal >CORONAL LOOP OSCILLATIONS AND FLARE SHOCK WAVES
【24h】

CORONAL LOOP OSCILLATIONS AND FLARE SHOCK WAVES

机译：冠状循环振荡和耀斑震荡波

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

A statistical analysis of coronal loop oscillations observed by the Transition Region and Coronal Explorer (TRACE) shows that 12 of 28 cases were associated with metric type II bursts. The timing is consistent with the idea that in many cases the loop oscillations result from the passage of a large-scale wave disturbance originating in a flare in the nearby active region. The GOES classifications for these flares range from C4.2 to X20. Typically, the oscillating structures are not disrupted, implying that the disturbance has passed through the medium, which has returned to an equilibrium near that seen prior to the event. This is consistent with the Uchida interpretation of the disturbance as a weak fast-mode blast wave (i.e., a simple wave at a low Alfvenic Mach number) propagating in the ambient corona. We note that all 12 of the associated events were also associated with coronal mass ejections (CMEs) and conclude that the CME eruptions in these cases corresponded to only partial openings of the active-region magnetic fields.
机译：过渡区和日冕总管（TRACE）观测到的冠状环路振荡的统计分析表明，在28例病例中有12例与公制II型爆发有关。定时与以下想法一致：在许多情况下，环路振荡是由附近活动区域火炬发源的大规模电波干扰通过而引起的。这些耀斑的GOES分类范围从C4.2到X20。通常，振荡结构不会被破坏，这意味着扰动已通过介质，该介质已恢复到接近事件发生前的平衡。这与Uchida将扰动解释为在环境日冕中传播的弱快速模式爆炸波（即低Alfvenic马赫数的简单波）相一致。我们注意到所有12个相关事件也都与日冕物质抛射（CMEs）相关，并得出结论，在这些情况下CME喷发仅对应于活动区域磁场的部分打开。

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