# Radio, Millimeter, and Sub-millimeter Observations of the Quiet Sun

## TL;DR

This paper reviews recent advances in radio, millimeter, and sub-millimeter observations of the quiet Sun, emphasizing the importance of these observations for understanding solar atmospheric heating and identifying current gaps in coverage.

## Contribution

It highlights the progress made with new instruments and models, and discusses the need for enhanced radio coverage of the 3D solar atmosphere.

## Key findings

- Progress driven by new instruments and modeling
- Identification of gaps in radio coverage
- Emphasis on the importance of multi-wavelength observations

## Abstract

Identification of the mechanisms responsible for heating the solar chromosphere and corona remains an outstanding problem, one of great relevance to late-type stars as well. There has been tremendous progress in the past decade, largely driven by new instruments, new observations, and sophisticated modeling efforts. Despite this progress, gaps remain. We briefly discuss the need for radio coverage of the 3D solar atmosphere and discuss the requirements.