太阳大气磁精细结构的射电探讨

太阳大气磁场的研究对于太阳大气物理及太阳活动研究是十分重要的。目前探测光球以外的日够以球，过渡区磁场的几乎唯一办法，是在紧密联系其他频说段取得的信息基础上使用射电观测。根据在微波，米波段有关辐射机制和传播过程，介绍了推导磁场讯息的基本射电方法。

The Radio Approach of Magnetic Fine Structures in Solar Atmosphere

The investigation on the magnetic field in solar atmosphere is essential not only to solaratmosphere physics but also to solar activity. Radio observation in close connection withinformation obtained in other spectral range, e.g. the optical and X-ray regions is almost aunique method for the determination of magnetic field in the coronal and chromosphere outsidethe photomosphere, On the base of relevant mechanism of emission and propagation processesin microwave and meter wavebands, basic radio methods for the deduction of the informationon magnetic fields of background and source region are introduced. There is evidence forthe existence of fine structures superimposed on the mean background height distribution ofmagnetic fields, which are expected to be intimately related to fragmentary field dissipation(reconnection) leading to particle acceleration and plasma heating signified by radio emission.The radio dynamic spectra of fast fine structures (FS) in microwave bursts provide a significantmeans for the diagnosis of fine magnetic structures. It is also the major scientific objects of"Solar Radio Broadband Spectrometer" which is being set up as a key project for the 23rd solaractivity cycle.