摘要
一种根据斯托克斯轮廓分析推导太阳矢量磁场和热力学参量的空间三维结构的新方法在本文中提出.在不考虑散射和原子偏振的假设下,该方法由三个具有不同功能的操作分别作用于太阳大气中一层或二层斯托克斯轮廓组成.这三个操作构成一个运行单元.将此单元运用到从表面到光球底层所划分的大气层格点,然后对扫描区所有的点应用同样的程序便可获得太阳上观察区的矢量磁场和热力学参量的空间三维结构.文中给出了相应的流程图和三个操作的详细描述,并用简化了的程序对理论轮廓进行了拟合.结果表明此方法能较满意地导出矢量磁场尤其是磁场强度的三维空间结构,而热力学参量结构的推导还需进一步改进.
new method is presented to infer the three-dimensional structure of vectormagnetic fields and thermodynamics from Stokes profile analysis. Under the assumption that scattering and atomic polarization can be neglected, the method consists of three coupled operations; each has different function from the others, acting on the Stokes profiles of one layer or two layers respectively to obtain the information on the vector magnetic field and thermodynamics, and the Stokes profiles of any depth considered below the surface in solar atmosphere. These operations form an executive unit. Applying the unit to the every depth devided fromthe surface to the bottom f the photosphere, and then the same procedure to theStokes profiles of every scanning point, the structure of the canning region can beobtained. Detailed description of these 3-D operations is given in the text and aflow diagram is plotted. A simplified programme is designed to fit the theoreticalprofiles and it shows that the structure of vector magnetic fields, espeCially theirstrengths, can be satisfactorily extracted, while that of thermodynamics need to befurther improved
出处
《天文学报》
CSCD
北大核心
1996年第2期201-211,共11页
Acta Astronomica Sinica
基金
国家自然科学基金
中国科学院院长基金
关键词
太阳
矢量磁场
热力学参量
偏振
olar atmosphere, Polarization, Radiative transfer