Volatiles in Disks Around Young Stars: Disentangling Our Origins

年轻恒星周围盘中的挥发物：解开我们的起源

• 批准号: 0908230
• 负责人: Erika Gibb
• 金额: $ 34.39万
• 依托单位: University of Missouri-Saint Louis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-15 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0908230&HistoricalAwards=false
• 关键词: Volatiles; Disks; Around; Young; Stars

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Dr. Erika Gibb will investigate how volatile molecules such as water, carbon monoxide, and simple organic molecules evolved through the collapse of a dark cloud into a protoplanetary disk and eventual incorporation into protoplanets or comets. This proposal will support a high-resolution, near-infrared spectroscopic study of numerous disks and envelopes surrounding very young stars to discern the chemical composition of these objects. A major goal of the program will be to explore how the formation environment and viewing geometry affect the measured composition of gas and dust in star forming regions. The results will be used to test models of chemical evolution of clouds and disks. This project is expected to have a broad impact on studies of origins of life and the evolution of young stars, and will contribute to a better understanding of interstellar and disk chemistry and will significantly impact chemical modeling of disks. Dr. Gibb and her team will integrate their research into secondary school education by educating teachers in the metropolitan St. Louis area. They will develop a summer workshop, in collaboration with the College of Education at her institution, to train teachers in the St. Louis area in the effective classroom use of astronomy-based activities. The activities will enhance conceptual understanding of science and teach the fundamental importance of scientific inquiry. The workshop will address key components of the Missouri Science Grade Level Expectations for secondary students through an interdisciplinary approach to science. A similar workshop, focusing on comet science, will be developed by Dr. Gibb and a collaborator for the Washington, DC metropolitan area.

该奖项是根据2009年《美国复苏与再投资法》（公法111-5）资助的。埃里卡·吉布（Erika Gibb）博士将研究挥发性分子，例如水，一氧化碳和简单的有机分子如何通过乌云塌陷到原行星磁盘中，并最终掺入原行星或彗星中。该建议将支持对围绕非常年轻的恒星的许多磁盘和信封进行高分辨率的近红外光谱研究，以辨别这些物体的化学组成。该计划的主要目标是探索形成环境和观察几何形状如何影响恒星形成区域中气体和尘埃的组成。结果将用于测试云和磁盘化学演化的模型。预计该项目将对生命的起源和年轻恒星的演变产生广泛的影响，并将有助于更好地理解星际和磁盘化学，并将显着影响磁盘的化学建模。 Gibb博士和她的团队将通过教育圣路易斯大都会地区的教师来将他们的研究纳入中学教育。 他们将与她的机构教育学院合作开发夏季研讨会，以在有效的基于天文学的活动的课堂使用中培训圣路易斯地区的教师。这些活动将增强对科学的概念理解，并教授科学探究的基本重要性。该研讨会将通过跨学科的科学方法来解决密苏里科学级别的期望的关键组成部分。 Gibb博士和华盛顿特区大都会地区的合作者将开发类似的专注于彗星科学的讲习班。