English

The chromosphere during solar flares

Solar and Stellar Astrophysics 2010-01-06 v1

Abstract

The emphasis of observational and theoretical flare studies in the last decade or two has been on the flare corona, and attention has shifted substantially away from the flare's chromospheric aspects. However, although the pre-flare energy is stored in the corona, the radiative flare is primarily a chromospheric phenomenon, and its chromospheric emission presents a wealth of diagnostics for the thermal and non-thermal components of the flare. I will here review the chromospheric signatures of flare energy release and the problems thrown up by the application of these diagnostics in the context of the standard flare model. I will present some ideas about the transport of energy to the chromosphere by other means, and calculations of the electron acceleration that one might expect in one such model.

Keywords

Cite

@article{arxiv.1001.0739,
  title  = {The chromosphere during solar flares},
  author = {Lyndsay Fletcher},
  journal= {arXiv preprint arXiv:1001.0739},
  year   = {2010}
}

Comments

9 pages, 3 Figures. To appear in Proceedings of the 25th NSO Workshop: Chromospheric Structure and Dynamics

R2 v1 2026-06-21T14:31:12.321Z