The first detection of the solar U+III association with an antenna prototype for the future lunar observatory

TL;DR

This paper reports the first detection of solar U+III radio bursts using a prototype antenna designed for lunar observations, confirming models of solar radio emissions at ultra-long wavelengths.

Contribution

It introduces a new antenna prototype for lunar radio astronomy and demonstrates its capability to detect solar U+III bursts, advancing ultra-long-wavelength solar observations.

Findings

Detection of solar U+III bursts with the prototype antenna

Confirmation of the Reid and Kontar (2017) model

Demonstration of the antenna's potential for lunar radio astronomy

Abstract

We report about observations of the solar U+III bursts on 5 June of 2020 by means of a new active antenna designed to receive radiation in 4-70 MHz. This instrument can serve as a prototype of the ultra-long-wavelength radiotelescope for observations on the farside of the Moon. Our analysis of experimental data is based on simultaneous records obtained with the antenna arrays GURT and NDA in high frequency and time resolution, e-Callisto network as well as by using the space-based observatories STEREO and WIND. The results from this observational study confirm the model of Reid and Kontar (2017).