A low-frequency (30-110 MHz) Antenna system for observations of polarized radio emission from the solar corona

Abstract

An interferometer antenna system to observe polarized radio emission from the solar corona at different frequencies in the range 30-110 MHz has been commissioned recently by the Indian Institute of Astrophysics at the Gauribidanur Radio Observatory (latitude 13°36'12''N and longitude 77°27'07''E), about 100 km north of Bangalore( http://www.iiap.res.in/centres_radio.htm ). This paper describes the antenna system, associated analog/digital receiver setup, calibration scheme, and preliminary results.