An Argument for Two Coronal Heating Models

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

There are several different models for the time and spatial scale of the energy release in the corona. Over the past several years, several different attempts at reconciling model predictions with observations have been made with varying degrees of success. In this talk, we review three popular heating models and discuss the expected observables associated with each model. We then show observations and compare them to the predictions. We find that observations of loops with a peak temperature near 1 MK are consistent with impulsive heating while observations of high temperature loops rooted in the moss are consistent with a steady heating model. This indicates the time scale of the heating, and potentially the heating mechanism, are markedly different in the two structures.

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