论文标题

放大单个星形形成:低质量和高质量星星

Zooming in on Individual Star Formation: Low- and High-mass Stars

论文作者

Rosen, Anna L., Offner, Stella S. R., Sadavoy, Sarah I., Bhandare, Asmita, Vázquez-Semadeni, Enrique, Ginsburg, Adam

论文摘要

星形形成是一个多尺度的多物理问题问题,范围从分子云的尺寸尺度($ \ sim $ 10s PC)到恒星的尺寸尺寸($ \ sim $ 0.1 PC),这些尺寸是星星的出生点。湍流,磁场和恒星反馈(例如辐射压力和流出)等几个物理过程对于不同的恒星质量和尺寸尺度,或多或少都很重要。在过去的十年中,各种技术和计算进步通过使用多波长观测,大规模观察性调查和多物理多维数值模拟来改变了我们对恒星形成的理解。此外,对仿真观察的使用提供了一种有用的工具来解释观察数据并评估各种物理过程在恒星形成中不同尺度上的重要性。在这里,我们回顾了高 - ($ M \ gtrsim 8 \,m _ {\ rm \ odot} $)和低质量星形成中的这些最新进展。

Star formation is a multi-scale, multi-physics problem ranging from the size scale of molecular clouds ($\sim$10s pc) down to the size scales of dense prestellar cores ($\sim$0.1 pc) that are the birth sites of stars. Several physical processes like turbulence, magnetic fields and stellar feedback, such as radiation pressure and outflows, are more or less important for different stellar masses and size scales. During the last decade a variety of technological and computing advances have transformed our understanding of star formation through the use of multi-wavelength observations, large scale observational surveys, and multi-physics multi-dimensional numerical simulations. Additionally, the use of synthetic observations of simulations have provided a useful tool to interpret observational data and evaluate the importance of various physical processes on different scales in star formation. Here, we review these recent advancements in both high- ($M \gtrsim 8 \, M_{\rm \odot}$) and low-mass star formation.

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