Imaging Microwave Spectroscopy of the Sun with the Owens Valley Solar Array

这笔拨款为欧文斯谷太阳能阵列的无线电数据分析提供了主要资金，欧文斯谷太阳能阵列是一个太阳能专用阵列，能够在广泛的微波频率范围内绘制太阳耀斑和活跃区域的二维地图。该阵列最近升级为5个天线，在每个观测频率上提供10个基线。通过结合紧密间隔频率的紫外线覆盖，我们获得了多个频段的快照图，或者对于稳定发射，该项目获得了多达45个频率的旋转合成图。光谱和成像能力的结合使该阵列成为一个独特的、强大的仪器，用于研究活跃区域的物理条件，以及在耀斑中加速的轻度相对论性电子的时空发展。在本建议所涉期间，与目前运行的航天器（Yohkoh和CGRO）联合进行的观测将更加重要。初步结果证明，该仪器达到了设计目标。＊＊＊

9311416 Gary The grant supplies major funding for the analysis of radio data from the Owens Valley Solar Array, a solar-dedicated array capable of two-dimensional mapping of solar flares and active regions at a wide range of microwave frequencies. The array has recently been upgraded to 5 antennas, giving 10 baselines at each observing frequency. By combining UV coverage in closely spaced frequencies, we obtain snapshot maps at a number of frequency bands, or for steady emission the project obtains rotational synthesis maps at up to 45 frequencies. The combination of spectral and imaging capabilities makes the array a unique, powerful instrument for studying the physical conditions in active regions, and the spatial and temporal development of mildly relativistic electrons accelerated in flares. During the period covered by this proposal, observations made jointly with currently operating spacecraft (Yohkoh and CGRO) will be of added importance. Early results prove that the instrument fulfills its design goals. ***