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arXiv 2211.04887astro-ph.EPphysics.space-ph
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太阳风与彗星的相互作用:演变、变率和含意

Solar wind interaction with a comet: evolution, variability, and implication

Charlotte Götz, Jan Deca, Kathleen Mandt, Martin Volwerk

摘要:

一旦彗星中性粒子电离形成彗星等离子体云,就会对太阳风和其中的磁场构成障碍。太阳风对彗星等离子体的加速和合并是一个复杂的过程,它塑造了彗星等离子体环境,并导致了边界的形成,如弓形激波和反磁空腔边界。它还产生波和电场,这反过来又有助于等离子体的加速。本章的目的是提供一个概述的太阳风是如何修改的彗星等离子体的存在,以及彗星等离子体是如何纳入太阳风。我们还将讨论在罗塞塔最近的发现的背景下,广泛用于等离子体环境的调查模型和技术。特别是,本章强调了这一环境中的过程和区域的丰富性,以及小尺度上的过程如何塑造大尺度上的边界。自从上一本关于彗星的书出版以来,已经有十五年了,从那时起,我们在彗星研究领域取得了很大的进展。但仍有许多悬而未决的问题,列出并讨论了如何通过未来的空间任务推进彗星等离子体科学领域的特别重点。

英文摘要:

Once a cometary plasma cloud has been created through ionisation of the cometary neutrals, it presents an obstacle to the solar wind and the magnetic field within it. The acceleration and incorporation of the cometary plasma by the solar wind is a complex process that shapes the cometary plasma environment and is responsible for the creation of boundaries such as a bow shock and diamagnetic cavity boundary. It also gives rise to waves and electric fields which in turn contribute to the acceleration of the plasma. This chapter aims to provide an overview of how the solar wind is modified by the presence of the cometary plasma, and how the cometary plasma is incorporated into the solar wind. We will also discuss models and techniques widely used in the investigation of the plasma environment in the context of recent findings by Rosetta. In particular, this chapter highlights the richness of the processes and regions within this environment and how processes on small scales can shape boundaries on large scales. It has been fifteen years since the last book on Comets was published and since then we have made great advances in the field of cometary research. But many open questions remain which are listed and discussed with particular emphasis on how to advance the field of cometary plasma science through future space missions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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