低质量恒星形成的UV观点
The UV Perspective of Low-Mass Star Formation
摘要：
在分子云中低质量恒星的形成涉及到吸积盘和喷流，这在天体物理学上具有广泛的意义。吸积恒星是这些现象最接近的例子。恒星和行星形成也是密切相关的，为我们这样的行星系统设定了起点。紫外线光谱范围特别适合研究恒星形成，因为几乎所有相关过程都在与紫外线发射过程相关的温度下辐射，或者在紫外线中具有强烈的观测特征。在这篇综述中，我们描述了紫外线观测如何提供独特的诊断吸积过程，物理性质的原行星盘，喷流和外流。
英文摘要：
The formation of low-mass stars in molecular clouds involves accretion disks and jets, which are of broad astrophysical interest. Accreting stars represent the closest examples of these phenomena. Star and planet formation are also intimately connected, setting the starting point for planetary systems like our own. The ultraviolet (UV) spectral range is particularly suited to study star formation, because virtually all relevant processes radiate at temperatures associated with UV emission processes or have strong observational signatures in the UV. In this review, we describe how UV observations provide unique diagnostics for the accretion process, the physical properties of the protoplanetary disk, and jets and outflows.
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