Collaborative Research: Star Formation in Subcritical Environments

合作研究：亚临界环境中的恒星形成

• 批准号: 0707468
• 负责人: Caroline Simpson
• 金额: $ 46.28万
• 依托单位: Florida International University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-06-15 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0707468&HistoricalAwards=false
• 关键词: Collaborative; Research; Star; Formation; Subcritical

AST-0707563/0707426/0707468/0707835Hunter/Elmegreen/Simpson/YoungThis is a collaborative project led by Dr Deidre Hunter of Lowell Observatory, along with Dr Bruce Elmegreen at the IBM Thomas J. Watson Research Center, Dr Caroline Simpson of Florida International University, and Dr Lisa Young from the New Mexico Institute of Mining and Technology.The team will obtain and analyze high angular and velocity resolution neutral hydrogen interferometric data of dwarf irregular galaxies and combine these with their extensive optical, ultra-violet, and infra-red images, in order to determine how these galaxies form star-forming gas clouds that propel their evolution. This study will lead to an improved understanding of star formation in all disk galaxies, by addressing a number of questions: what regulates star formation in small galaxies; what is the relative importance of sequential triggering; what regulates turbulence; how important is triggering by random turbulence; what is happening in the far outer parts of dwarf galaxies; what aspect of star formation changes in blue compact dwarf galaxies? These questions need to be answered because dwarf galaxies are the most common galaxy, the most pristine chemically, and the type most closely connected to the earliest star-forming systems in the universe.High school students, undergraduates, graduate students, and post-doctoral researchers have been, and will continue to be, involved in this journey of scientific discovery. Many of these participants have in the past been women, and some were also from under-represented groups. The team will continue this preference. The investigators are all also involved in continuing public and K-12 outreach activities.

AST-0707563/0707426/0707468/0707835Hunter/Elmegreen/Simpson/Young这是一个由洛厄尔天文台的 Deidre Hunter 博士、IBM Thomas J. Watson 研究中心的 Bruce Elmegreen 博士、佛罗里达国际大学的 Caroline Simpson 博士和来自纽约大学的 Lisa Young 博士领导的合作项目 墨西哥矿业技术学院。该团队将获取并分析矮不规则星系的高角和速度分辨率中性氢干涉数据，并将这些数据与其广泛的光学、紫外和红外图像相结合，以确定这些星系如何形成推动其演化的恒星形成气体云。 这项研究将通过解决一些问题来提高对所有盘状星系中恒星形成的理解：什么调节小星系中的恒星形成；顺序触发的相对重要性是什么？什么调节湍流；随机湍流触发有多重要；矮星系的最外层正在发生什么；蓝致密矮星系中恒星形成的哪些方面发生了变化？ 这些问题需要得到解答，因为矮星系是最常见的星系，化学成分最原始，也是与宇宙中最早的恒星形成系统联系最密切的类型。高中生、本科生、研究生和博士后研究人员已经并将继续参与这一科学发现之旅。 其中许多参与者过去都是女性，有些还来自代表性不足的群体。 团队将延续这一偏好。 调查人员还参与持续的公共和 K-12 外展活动。