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On the effects of ion-neutral interactions in solar plasmas

机译:关于离子中性相互作用在太阳等离子体中的影响

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摘要

Solar photosphere and chromosphere are composed of weakly ionized plasma for which collisional coupling decreases with height. This implies a breakdown of some hypotheses underlying magnetohydrodynamics at low altitudes and gives rise to non-ideal MHD effects such as ambipolar diffusion, Hall effect, etc. Recently, there has been progress in understanding the role of these effects for the dynamics and energetics of the solar atmosphere. There are evidences that phenomena such as wave propagation and damping, magnetic reconnection, formation of stable magnetic field concentrations, magnetic flux emergence, etc can be affected. This paper reviews the current state-of-the-art of multi-fluid MHD modeling of the coupled solar atmosphere.
机译:太阳能光斑和铬圈由弱电离等离子体组成,碰撞耦合随高度而降低。 这意味着一些假设在低空高原下磁性流体动力学的崩溃,并产生非理想的MHD效应,例如Ambipolar扩散,霍尔效应等。最近,了解这些效应对动态和能量学的作用的进步 太阳气氛。 存在证据,如波传播和阻尼,磁性重新连接,稳定磁场浓度,磁通量出现等的现象都可能受到影响。 本文审查了耦合太阳能气氛的当前多流体MHD建模的现状。

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