Dynamos in accretion discs
classification
🌌 astro-ph
keywords
accretiondiscdiscsdrivingmagneticreconnectionarguedaway
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It is argued that accretion discs in young stellar objects may have hot coronae that are heated by magnetic reconnection. This is a consequence of the magneto-rotational instability driving turbulence in the disc. Magnetic reconnection away from the midplane leads to heating of the corona which, in turn, contributes to driving disc winds.
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