高光谱分辨率小尺度结构的RATAN-600观测
RATAN-600 Observations of Small Scale Structures with High Spectral Resolution
摘要：
本文介绍了利用中国科学院的{ \it射电天文望远镜600}（RATAN-600）光谱偏振设备在宽频率范围内对宁静太阳小尺度结构（SSS）的微波观测。SSS是大型反射射电望远镜在日常观测中经常记录到的，它代表了宁静太阳的各种结构在射电范围内的表现：超颗粒网络、亮点、斑片等，与{ \it太阳动力学观测站}（SDO）的图像比较表明，微波辐射来自从色球层到低跃迁区的一个区域。我们测量了SSS的性质以及射电望远镜光束的平均圆偏振度，并由此估计了辐射形成水平的磁场。
英文摘要：
We present observations of quiet-sun small-scale structures (SSS) in the microwave range with the {\it Radio Astronomical Telescope of the Academy of Sciences 600} (RATAN-600) spectral-polarization facility in a wide range of frequencies. SSS are regularly recorded in routine observations of the large reflector-type radio telescope and represent manifestations in the radio range of various structures of the quiet-sun: supergranulation network, bright points, plage patches and so on. A comparison with with images from the {\it Solar Dynamics Observatory} (SDO) showed that the microwave emission comes from a region extending from the chromosphere to the low transition region. We measured the properties of the SSS as well as the degree of circular polarization averaged over the beam of the radio telescope and from this we estimated the magnetic field at the formation level of the radiation.
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