太阳针状体的观测研究进展

发布时间：2017-12-30 17:43

本文关键词：太阳针状体的观测研究进展　出处：《天文学进展》2014年04期 　论文类型：期刊论文

【摘要】：针状体是太阳的基本结构,人们对它的研究已有100多年的历史,在观测和理论方面取得突破性进展。由于针状体本身的特点(小结构尺度、高动态、短寿命),对它的观测研究十分依赖望远镜的分辨率。文章主要描述借助于Hinode卫星搭载的SOT空间望远镜、SST(The Swedish1-m SolarTelescope,瑞典1 m太阳望远镜)等地基太阳望远镜所取得的关于色球针状体及其日面对应物的观测研究成果。主要包括以下几个方面:(1)针状体的形态,如轨迹、高度、长度、速度等,和由此而得到的分类;(2)针状体的日面对应物——纤维和日芒;(3)针状体的起源机制。即便今天,针状体仍然存在许多未解之谜:II型针状体是否存在?针状体和它日面对应物之间的关系是什么?如果存在两种类型的针状体,那么它们的激发机制是什么?它的波动是由什么引起?针状体能否加热日冕和加速太阳风?作为太阳的基本结构,在其他恒星上是否存在?等等。
[Abstract]:Acicular body is the basic structure of the sun. It has been studied for more than 100 years and has made a breakthrough in observation and theory. The observation and study of the short-lived telescope depend heavily on the resolution of the telescope. This paper mainly describes the SOT space telescope with the aid of Hinode satellite. SST(The Swedish1-m SolarTelescope. The observation and research results obtained by the ground-based solar telescope such as Sweden 1 m Solar Telescope on the acicular body and its sun-face response mainly include the following aspects: 1) the shape of the needle-like body, such as the trajectory. Height, length, speed, etc., and the resulting classification; (2) the diurnal face of acicular body-fiber and sunflower; (3) the origin mechanism of acicular bodies. Even today, there are still many unsolved questions about the existence of type 2 acicular bodies. What is the relationship between the acicular body and its counterpart? If there are two types of needle-like bodies, what are their excitation mechanisms? What causes its fluctuations? Can acicular bodies heat the corona and accelerate the solar wind? As the basic structure of the sun, does it exist on other stars? Wait.
【作者单位】：中国科学院云南天文台;中国科学院大学;中国科学院国家天文台太阳活动重点实验室;
【基金】：国家自然科学基金(10933003,11078004,11073050)
【分类号】：P182.2
【正文快照】： 1引言针状体是指在太阳日面边缘观测到的像稻草一样稠密、细长、参差不齐,同时又沿着磁力线快速运动的类喷流结构。它最先由SecchiW发现,然后被Roberts?命名为针状体。针状体的速度一般是10?150 km.s-1,长度一般在几百km到几千km,不同区域的长度是不同的,一般冕洞区的最长,活

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