论文标题
恒星形成中的物理过程
Physical Processes in Star Formation
论文作者
论文摘要
恒星形成是一种复杂的多尺度现象,对于总体而言,对天体物理学至关重要。恒星和恒星形成是观测天文学的关键支柱,从银河系到高红色星系的本地恒星形成区域。从理论的角度来看,恒星形成和反馈过程(辐射,风和超新星)在促进我们对工作中的物理过程的理解(无论是单独和它们的相互作用)方面起着关键作用。在这篇评论中,我们将概述主要过程,这些过程对于理解恒星形成很重要。我们从从全球的角度观察到恒星形成的观点开始,并概述了分子云的生命周期的一般范式,其中恒星形成是关闭周期的关键过程。之后,我们专注于恒星形成区域中的热和化学方面,讨论湍流和磁场以及重力。最后,我们回顾了最重要的恒星反馈机制。
Star formation is a complex multi-scale phenomenon that is of significant importance for astrophysics in general. Stars and star formation are key pillars in observational astronomy from local star forming regions in the Milky Way up to high-redshift galaxies. From a theoretical perspective, star formation and feedback processes (radiation, winds, and supernovae) play a pivotal role in advancing our understanding of the physical processes at work, both individually and of their interactions. In this review we will give an overview of the main processes that are important for the understanding of star formation. We start with an observationally motivated view on star formation from a global perspective and outline the general paradigm of the life-cycle of molecular clouds, in which star formation is the key process to close the cycle. After that we focus on the thermal and chemical aspects in star forming regions, discuss turbulence and magnetic fields as well as gravitational forces. Finally, we review the most important stellar feedback mechanisms.