RUI: Evaluating the Interaction Between Outflow and Dense Core Toward Forming Sun-Like Stars

AST 0307530 PI Ladd虽然已经非常清楚，恒星必须由弥漫的星际物质聚集而成，但这个过程是如何发生的，特别是哪些机制在演化中起主导作用，仍然知之甚少。形成中的恒星不会吸积所有可供它们使用的物质，而是在形成过程中排斥周围致密核心的一部分。虽然排斥过程还不太清楚，但人们怀疑形成中的星星的喷流和双极外流起了主要作用。这个研究计划致力于了解在确定形成中的星星质量的临界阶段，重力下降和物质抛射之间复杂的相互作用。毫米波长干涉仪将用于一项活动，对核心-外流相互作用区域进行成像，并评估外流对致密核心的影响程度。更广泛的影响。该计划的教育影响发生在一个主要的本科环境。该项目将创造一个积极的研究环境，为本科生参与的机会。

AST 0307530PI LaddThough it is abundantly clear that stars must form from the aggregation of diffuse interstellar material, how this process occurs, and specifically which mechanisms play a dominant role in the evolution, are still poorly understood. Forming stars do not accrete all of the material available to them, but instead reject some fraction of their surrounding dense cores during the formation process. While the rejection process is not well understood, it is suspected that jets and bipolar outflows from the forming star play a major role. This research program is endeavoring to understand the complicated interplay between gravitational infall and material ejection during the critical phase when the mass of a forming star is determined. Millimeter wavelength interferometers will be used in a campaign to image the core-outflow interaction region, and to evaluate the extent to which the outflow impacts the dense core. Broader Impact. The educational impacts of this program occur within a predominantly undergraduate environment. This project will create an active research environment with opportunities for undergraduate participation.