The radio astronomy group in the Indian Institute of Astrophysics (IIA) has been carrying out routine observations of radio emission from the solar corona at low frequencies (≈40 – 440 MHz) at the Gauribidanur observatory, about 100 km north of Bangalore. Since IIA has been performing regular observations of the solar photosphere and chromosphere using different optical telescopes in its Kodaikanal Solar Observatory (KSO) also (see https://www.iiap.res.in/kodai.htm), the possibilities of obtaining two-dimensional radio images of the solar chromosphere using low-cost instrumentation to supplement the optical observations are being explored. As a part of the exercise, recently the group had developed prototype instrumentation for interferometric observations of radio emission from the solar chromosphere at high frequencies (≈11.2 GHz) using two commercial dish TV antennas. The hardware set-up and initial observations are presented.

印度天体物理研究所 (IIA) 的射电天文学小组一直在班加罗尔以北约 100 公里的 Gauribidanur 天文台对来自太阳日冕的低频（≈40 – 440 MHz）射电发射进行常规观测。由于 IIA 一直在其 Kodaikanal 太阳天文台 (KSO) 中使用不同的光学望远镜对太阳光球层和色球层进行定期观测（参见 https://www.iiap.res.in/kodai.htm），获得两个的可能性正在探索使用低成本仪器来补充光学观测的太阳色球层的三维射电图像。作为演习的一部分，该小组最近开发了原型仪器，用于对来自太阳色球层的高频（≈11.0.1.1.25.12.12.25）无线电发射进行干涉观测。2 GHz）使用两个商用碟形电视天线。介绍了硬件设置和初始观察。