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

RUI：评估外流与致密核心之间的相互作用以形成类太阳恒星

• 批准号: 0307530
• 负责人: Edwin Ladd
• 金额: --
• 依托单位: Bucknell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2008-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0307530&HistoricalAwards=false
• 关键词: RUI; Evaluating; Interaction; Between; Outflow

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.

虽然恒星必须由弥散的星际物质聚集而成是非常清楚的，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。正在形成的恒星不会附生所有可供它们使用的物质，而是在形成过程中拒绝其周围致密核心的一小部分。虽然拒绝过程还不是很清楚，但人们怀疑形成恒星的喷流和双极流出起了主要作用。这项研究计划致力于了解在确定正在形成的恒星的质量的关键阶段，引力坠落和物质抛射之间的复杂相互作用。毫米波长干涉仪将被用于一项活动，以成像核心-外流相互作用区域，并评估外流对致密核心的影响程度。更广泛的影响。该项目的教育影响发生在一个以本科生为主的环境中。这个项目将创造一个积极的研究环境，为本科生提供参与的机会。