THE TANGENTIAL DISCONTINUOUS SURFACE OF VELOCITY IN SOLAR CHROMOSPHERE

作     者：胡文瑞 张洪起 陈济民 

作者机构：Institute of Mechanics Academia Sinica Beijing 100080 PRC Beijing Observatory Academia Sinica Beijing 100080 PRC 

出 版 物：《Science China Mathematics》 (中国科学：数学（英文版）)

年 卷 期：1991年第34卷第11期

页      面：1354-1364页

核心收录：

学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0701[理学-数学] 

基　　金：Project supported by Academia Sinica under contract 87-64. 

主　　题：solar chromosphere magnetic field velocity field. 

摘      要：The data of velocity and magnetic fields in the solar photosphere (5324 A) and thechromosphere (4861 A) clearly show the features of tangential discontinuity of velocity inthe chromosphere. The velocity fields in and near the solar active region named No. 88029by the Huairou Station have been analyzed in detail. A lot of magnetohydrodynamic discon-tinuous surfaces, especially the tangential discontinuities, are shown from the observations.The calculations of the thickness of discontinuous layer and the evoluiton time of instabilityagree with the observational results. The variations of the flow field will directly influencethe evolutions and changes of the active region as the magnetic field are coupled closelywith the plasma motion.