YNAO OpenIR  > 太阳物理研究组
Alternative TitleTheoretical investigation of changes in the photospheric magnetic field during solar eruption
Thesis Advisor林隽
Degree Grantor中国科学院研究生院(云南天文台)
Place of Conferral北京
Degree Discipline天体物理
Keyword太阳 磁场 太阳-耀斑 太阳-日冕物质抛射 太阳-光球
Abstract太阳对整个人类社会的重要性是不言而喻,我们日常生活和工业生产的各个方面都离不开太阳。然而,随着空间技术的发展,有关空间天气的知识显得越来越匮乏。太阳毫无疑问是空间天气的主要因素,其大气中的激烈爆发现象是各种空间气象的根源。加强太阳大气中爆发现象的理论研究成为目前空间技术发展的迫切需要。同时,太阳作为一颗离我们最近的恒星和一个有代表性的主序星,也有着特殊重要的地位。太阳丰富的磁化等离子现象,特别是大气中爆发现象,为我们研究磁化等离子性质提供丰富材料。 本文主要是致力于太阳大气中爆发现象的理论研究。运用已有的太阳爆发灾变模型,去解释最近的一些观测现象。从而一方面为观测分析提供理论上的指导,另一方面,深入认识已建立的理论模型和寻找进一步努力方向。 论文的主要内容如下: 第一章:引言。 第二章:给出已有的太阳爆发灾变模型的发展历史, 最近的一些相关的主要工作和基本的理论框架;并给出最近面临的问题和需要进一步发展的地方。 第三章:近年来,太阳观测手段不断加强,尤其是空间观测资料在质量和数量上不断攀升,各种各样的新现象不断涌现,需要已有的相关理论作出解释或进一步发展。其中一种在学术界讨论很激烈就是和耀斑相联系的太阳光球磁场变化。在这部分,总结了一系列这类现象,并给出这些现象的理论意义和暗示的理论发展方向。 第四章:针对耀斑相联系的爆发现象,应用已有的灾变模型作出相应的解释。为此,选用了四个有代表性的边界条件,调查在这四种情况下灾变过程中光球表面的变化。 第五章:总结全文和对我们进一步工作作出展望。
Other AbstractIt goes without say that solar play a critical role in whole human society, because every aspects of our daily life and economy activities depend on it. However, the knowledge of space weather become more and more insufficient due to the recent development of space technology. The sun response for all kinds of space weather phenomenon and the furious eruptions occurred in solar atmosphere are root of many problems which effect our world. Thus, enhancing the research of solar eruption phenomenon is urgent for us. Meanwhile, Solar hold special mean because of the nearest star to earth, and solar various magnetized plasma, especially solar eruption, support us with abundant data for studying the behavior of magnetized plasma. This thesis is dedicated to the theoretical study of solar eruption phenomenon. A widely accepted theoretical model, catastrophe model, is the cornerstone for this thesis to interpret some recent observational conclusions. The main goal is to give some theoretical instruction for the analysis of observation data. The main content is divided into four chapters: In chapter one, an introduction of this thesis are given. In chapter two, the history of the catastrophe model related to solar eruption, several recent important papers, theoretical frame of this model and some aspects required further development are presented here. Recently, various new eruption phenomenon emerge due to the enhancing of observational technology, especially the rapid development of space telescope. A debated topic among these phenomenon is flare related rapid changes of photosphere magnetic field. In chapter three, the changes of photosphere field and its effect on the current eruption theoretical model are given. In chapter four, in order to give reasonable theoretical interpretation for these changes, we investigate the changes of the photosphere magnetic field during catastrophe jumping four typical boundary conditions based on catastrophe model. In chapter five, we summarize this thesis and indicate the direction of our further work.
Subject Area天文学
Document Type学位论文
Recommended Citation
GB/T 7714
梅志星. 爆发过程中太阳光球表面磁场变化的理论调查[D]. 北京. 中国科学院研究生院(云南天文台),2008.
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