Coronal heating refers to the process of heating the outer layer of the Sun's atmosphere called the corona. The corona is much hotter than the Sun's surface and scientists are still trying to understand why it is heated so much. Full definition
Today, a team led by Paola Testa of the Harvard - Smithsonian Center for Astrophysics (CfA) is presenting new clues to the mystery of coronal heating using observations from the recently launched Interface Region Imaging Spectrograph (IRIS). (sciencedaily.com)
«Sun's blistering heat: Strong evidence for coronal heating theory.» (sciencedaily.com)
It is thought that the energy necessary to heat the corona is provided by turbulent motion in the convection zone below the photosphere, and two main mechanisms have been proposed to explain coronal heating. (newworldencyclopedia.org)