Storing free magnetic energy in the solar corona

G. Vekstein

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This article presents a mini-tutorial aimed at a wide readership not familiar with the field of solar plasma physics. The exposition is centred around the issue of excess/free magnetic energy stored in the solar corona. A general consideration is followed with a particular example of coronal magnetic arcade, where free magnetic energy builds up by photospheric convective flows. In the context of solar physics the major task is to explain how this free energy can be released quickly enough to match what is observed in coronal explosive events such as solar flares. Therefore, in the last section of the paper we discuss briefly a possible role of magnetic reconnection in these processes. This is done in quite simple qualitative physical terms, so that an interested reader can follow it up in more detail with help of the provided references.

    Original languageEnglish
    Article number925820401
    JournalJournal of Plasma Physics
    Volume82
    Issue number4
    Early online date12 Aug 2016
    DOIs
    Publication statusPublished - Aug 2016

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