An Observational Overview of Solar Flares

TL;DR

This paper provides a comprehensive observational overview of solar flares, integrating data from multiple sources to enhance understanding of their phenomena, energetics, and relationship with coronal mass ejections, highlighting current knowledge gaps.

Contribution

It offers a broad synthesis of observational data on solar flares, emphasizing multi-faceted perspectives and identifying key gaps in current models and observations.

Findings

Detailed observational descriptions of flare phenomena

Analysis of flare energetics and spectral data

Discussion of models and identification of missing observations

Abstract

We present an overview of solar flares and associated phenomena, drawing upon a wide range of observational data primarily from the RHESSI era. Following an introductory discussion and overview of the status of observational capabilities, the article is split into topical sections which deal with different areas of flare phenomena (footpoints and ribbons, coronal sources, relationship to coronal mass ejections) and their interconnections. We also discuss flare soft X-ray spectroscopy and the energetics of the process. The emphasis is to describe the observations from multiple points of view, while bearing in mind the models that link them to each other and to theory. The present theoretical and observational understanding of solar flares is far from complete, so we conclude with a brief discussion of models, and a list of missing but important observations.