Momentum Distribution in Solar Flare Processes
| Autor: | Hugh S. Hudson, Alexander Russell, William P. Abbett, George H. Fisher, Lyndsay Fletcher |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Physics
Solar flare 010308 nuclear & particles physics Coronal cloud Astronomy Astronomy and Astrophysics Mechanics Impulse (physics) 01 natural sciences Seismic wave law.invention Acceleration Space and Planetary Science law Physics::Space Physics 0103 physical sciences Coronal mass ejection Astrophysics::Solar and Stellar Astrophysics 010303 astronomy & astrophysics Excitation Flare |
| Zdroj: | Solar Physics. 277:77-88 |
| ISSN: | 1573-093X 0038-0938 |
| DOI: | 10.1007/s11207-011-9836-0 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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