Observations and Modeling of the Solar Flux Emergence
Observations and Modeling of the Solar Flux Emergence
复制标题
太阳通量出现的观测和建模
DOI：
10.1093/pasj/psu100
复制
发表时间：
2014
影响因子：
2.3
通讯作者：
S. Toriumi
中科院分区：
文献类型：
--
作者：
T. Kobayashi;K. Itoh;et al.;中島 規博;S. Toriumi
在太阳发生的各种各样的磁活动现象中，磁通浮现是最突出的事件之一。重要的是要研究磁通量的出现，因为这是一个将磁通量从内部深处输送到高层大气的过程，创造了活跃的区域，有时会导致灾难性的耀斑爆发。最近的观测表明，通量的出现范围很广，从包括太阳黑子在内的大规模活动区的形成，到只有用先进仪器才能观测到的小规模事件，涉及的尺度范围很广。此外，日震学可能使我们能够在通量本身出现在太阳的可见表面之前就调查这一过程。与此同时，最近的发展，在通量出现的数值模拟打开了大门，进一步了解的物理过程，如电阻和对流的出现。本文综述了近年来通量浮现研究的观测和数值模拟进展，重点讨论了三个重要方面：内部的浮现、表层的首次出现以及它们与耀斑活动的关系。在此基础上，我们还讨论了未来的研究方向。
In a wide variety of magnetic activity phenomena occurring in the Sun, flux emergence is one of the most prominent events. It is important to study flux emergence since this is the process that transports the magnetic flux from the deep interior to the upper atmosphere, creates active regions, and sometimes causes catastrophic flaring eruptions. Recent observations have revealed that flux emergence ranges from the formation of large-scale active regions including sunspots to small-scale events observable only with advanced instruments, covering a very broad spectrum of scale involved. In addition, helioseismology may allow us to investigate the process even before the flux itself appears at the visible surface of the Sun. At the same time, recent development in the numerical modeling of flux emergence opens the door to a further understanding of physical processes, such as resistive and convective emergence. In this paper, we review the observational and numerical progress in the field of flux emergence study, while focusing particularly on three important aspects: emergence in the interior, the first appearance in the surface layer, and their relation with flaring activity. Based on these studies, we also discuss what should be investigated in the future.