Abstract
Chromospheric evaporation is currently the most popular theory for explaining the source of the coronal flare material and the upward motions of X-ray emitting material observed as soft X-ray line broadenings and line shifts at the start of solar flares. According to this theory, flare energy heats chromospheric material at a sufficiently rapid rate that it reaches coronal temperatures and subsequently expands upward into the coronal flare loop where it emits soft X-rays. Although this process is not actually a change of state, as implied by the term “evaporation”, the term has persisted; a more appropriate term, ablation, did not gain general acceptance.
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© 1999 Springer Science+Business Media New York
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Bornmann, P.L. (1999). Chromospheric Evaporation Theory. In: Strong, K.T., Saba, J.L.R., Haisch, B.M., Schmelz, J.T. (eds) The Many Faces of the Sun. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-1442-7_9
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DOI: https://doi.org/10.1007/978-1-4612-1442-7_9
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