The Close-up View of Massive Star Clusters and their Gas

大质量星团及其气体的特写视图

• 批准号: 1515570
• 负责人: J. Turner
• 金额: $ 27.24万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-15 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1515570&HistoricalAwards=false
• 关键词: Close; up; View; Massive; Star

This proposal investigates properties of newly formed massive clusters of stars, which are thought to be analogs of the large star clusters (so-called "globular clusters") that formed very early in the history of our Milky Way Galaxy and many other galaxies. The team will acquire molecular-line and dust-continuum data, using the most advanced millimeter and submillimeter radio telescopes such as the Atacama Large Millimeter/Submillimeter Array, to investigate the star formation efficiency in these young massive clusters. Characterizing this efficiency has important ramifications for a star cluster's survivability, as well as for how star formation will progress near the cluster and throughout its host galaxy. The team's low-resolution pilot study of a young massive cluster hints at a surprisingly efficient conversion of gas into stars. To make progress, that cluster and a similar one will be studied with the high angular resolution and sensitivity that have only recently become available for southerly clusters. A low-resolution study of a northerly cluster will also be undertaken to begin exploring this important topic in a third setting. The PI will continue her successful efforts to involve women and other underrepresented groups in her research. She will also continue to give public talks

这个提议研究了新形成的大质量星团的特性，这些星团被认为是类似于在我们银河系和许多其他星系的历史早期形成的大型星团（所谓的“球状星团”）。该团队将使用最先进的毫米和亚毫米射电望远镜（如阿塔卡马大型毫米/亚毫米阵列）获取分子线和尘埃连续体数据，以研究这些年轻的大质量星团中的恒星形成效率。描述这种效率对星团的生存能力，以及星团附近和整个宿主星系的恒星形成过程具有重要的影响。该团队对一个年轻的大质量星团进行的低分辨率初步研究表明，气体转化为恒星的效率惊人。为了取得进展，将对该星团和一个类似的星团进行高角度分辨率和灵敏度的研究，这是最近才可以用于南部星团的。还将对北部星团进行低分辨率研究，以便在第三个环境中开始探索这一重要主题。PI将继续她成功的努力，让妇女和其他代表性不足的群体参与她的研究。她还将继续进行公开演讲

项目成果

Ionized Gas Motions and the Structure of Feedback near a Forming Globular Cluster in NGC 5253

• DOI: 10.3847/1538-4357/aac170
• 发表时间: 2018-05
• 期刊: The Astrophysical Journal
• 作者: D. Cohen;J. Turner;S. Consiglio;E. Martin;S. Beck