Momentum Distribution in Solar Flare Processes

H. S. Hudson, L. Fletcher, G. H. Fisher, W. P. Abbett, A. Russell

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


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 pages12
JournalSolar Physics
Issue number1
Publication statusPublished - May 2012


  • Solar flare


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