Momentum Distribution in Solar Flare Processes

H. S. Hudson (Lead / Corresponding author), L. Fletcher, G. H. Fisher, W. P. Abbett, A. Russell

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11 Citations (Scopus)

Abstract

We discuss the consequences of momentum conservation in processes related to solar flares and coronal mass ejections (CMEs), in particular describing the relative importance of vertical impulses that could contribute to the excitation of seismic waves ("sunquakes"). The initial impulse associated with the primary flare energy transport in the impulsive phase contains sufficient momentum, as do the impulses associated with the acceleration of the evaporation flow (the chromospheric shock) or the CME itself. We note that the deceleration of the evaporative flow, as coronal closed fields arrest it, will tend to produce an opposite impulse, reducing the energy coupling into the interior. The actual mechanism of the coupling remains unclear at present.
Original languageEnglish
Pages (from-to)77-88
Number of pages11
JournalSolar Physics
Volume277
Issue number1
Early online date4 Oct 2011
DOIs
Publication statusPublished - Mar 2012

Keywords

  • Solar flare

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