Mass Loss and Disk Formation in Rapidly Rotating Stars

Owocki，Stanley“快速自转恒星中的质量损失和盘的形成”AST-0097983天文学中的一个长期存在的问题是导致经典Be星特有的巴尔默线发射的星盘的起源。本奖项承担的基本任务是了解这些磁盘是如何生成、维护和分散的。它们可能起源于快速自转恒星表面或附近的活动区，是由径向质量抛射产生的，而径向质量抛射增加了恒星旋转运动提供的能量，而恒星的旋转运动被强区域磁场锁定在外流气体中。这项工作需要考虑广泛的物理过程，如辐射驱动的质量损失、非径向脉动、恒星的快速自转以及所有这些过程与磁场的相互作用。这些过程分别以不同的组合，在从行星到星系的许多其他天体物理系统中扮演着关键角色。因此，这里所做的工作将广泛适用于当代天体物理学的其他领域。

Owocki, Stanley" Mass Loss and Disk Formation in Rapidly Rotating Stars "AST- 0097983A long-standing problem in astronomy is the origin of the circumstellar disks that cause the characteristic Balmer line emission of classical Be stars. The basic task undertaken in this award is to understand the way in which these disks are generated, maintained and dispersed. It is probable that they originate from active regions in or near the surface of the rapidly rotating star and are generated by radial mass ejections augmented with energy supplied by the rotational motion of the star which is locked into the outflowing gas by strong regional magnetic fields. The work requires the consideration of a wide range of physical processes such as radiatively driven mass loss, non-radial pulsation, rapid stellar rotation and the interaction of all of these with magnetic fields. Individually and in various combinations, these processes play a key role in many other astrophysical systems on scales from planets to galaxies. Thus the work done here will have wide applicability to other areas of contemporary astrophysics.