低质量恒星的风和日冕物质抛射的观测

R. Osten
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引用次数: 0

摘要

在这次受邀的回顾演讲中,我将总结一些最近在理解低质量恒星质量损失方面的观测进展。这可以采取相对稳定的风的形式,或者随机发生的日冕物质抛射(cme)。近年来,越来越多的观测信号被用于探测低质量恒星的质量损失。这些观测工具跨越了电磁波谱。由于它对系外行星空间天气和可居住性的潜在影响,人们对这个话题的兴趣也重新燃起。最近大量的观测和理论结果也指出了其中的复杂性,而不是简单地从太阳的理解中进行缩放。这强调了需要了解磁活跃恒星上的重联和喷发过程,作为将我们的太阳置于背景中的工具。
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Observations of Winds and CMEs of Low-Mass Stars
Abstract In this invited review talk I summarize some of the recent observational advances in understanding mass loss from low-mass stars. This can take the form of a relatively steady wind, or stochastically occurring coronal mass ejections (CMEs). In recent years, there has been an expansion of observational signatures used to probe mass loss in low-mass stars. These observational tools span the electromagnetic spectrum. There has also been a resurgence of interest in this topic because of its potential impact on exoplanet space weather and habitability. The numerous recent observational and theoretical results also point to the complexities involved, rather than using simple scalings from solar understanding. This underscores the need to understand reconnection and eruption processes on magnetically active stars as a tool to putting our Sun in context.
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