Compendium solar spectrum formation

TL;DR

This paper reviews the complex processes involved in the formation of the solar spectrum, emphasizing the non-local interactions in the solar atmosphere and their impact on diagnostics.

Contribution

It provides a comprehensive summary of the complexities in solar spectrum formation, integrating classical literature and highlighting chromospheric processes.

Findings

Solar spectrum formation involves non-local control in space, wavelength, and time.

Understanding these processes is crucial for accurate solar diagnostics.

The paper synthesizes classical studies to clarify spectrum formation mechanisms.

Abstract

The solar spectrum conveys most of our diagnostics to find out how our star works. They must be understood for utilization, but solar spectrum formation is complex because the interaction of matter and radiation within the solar atmosphere suffers non-local control in space, wavelength, and time. These complexities are summarized and illustrated with classic literature. They combine in chromospheric spectrum formation.