Stellar Populations, Feedback and the Evolution of Starbursts

恒星族群、反馈和星暴的演化

• 批准号: 0708967
• 负责人: John Gallagher
• 金额: $ 21.11万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0708967&HistoricalAwards=false
• 关键词: Stellar; Populations; Feedback; Evolution; Starbursts

AST-0708967GallagherDr. John Gallagher of the University of Wisconsin at Madison will carry out a study of starburst activities in nearby galaxies, making spectroscopic and imaging observations with telescopes of the WIYN (Wisconsin-Indiana-Yale-National Optical Astronomy Observatory) Observatory and with SALT (the Southern African Large Telescope). First, he will investigate the relationship between young stellar systems within starbursts, compact massive star clusters and starburst clumps, and the state of the interstellar medium. Second, he will study how young stellar populations in starbursts connect to galactic winds and widespread gas ionization. The data will be compared with models of stellar populations, enabling studies of astrophysical processes inside these extreme objects, which are likely to apply in rapidly star-forming young galaxies at redshifts of two and above, where the majority of the present day stellar mass was probably produced.The research activities involve student training and international collaboration. Undergraduates will gain access to this project through the NSF-REU (Research Experiences for Undergraduates) program. The team will continue its participation in the very popular "Universe in the Park" program, where students bring small telescopes to state parks in Wisconsin and open the skies to the public. Exchange programs will be carried out with South Africa and other countries.

AST-0708967 GallagherDr.位于麦迪逊的威斯康星州大学的John Gallagher将对附近星系的星暴活动进行研究，用WIYN（威斯康星-印第安纳-耶鲁-国家光学天文台）天文台的望远镜和SALT（南部非洲大型望远镜）进行分光和成像观测。 首先，他将研究星爆内的年轻恒星系统、紧凑的大质量星星团和星爆团块与星际介质状态之间的关系。 其次，他将研究恒星暴增中的年轻恒星群如何与星系风和广泛的气体电离联系起来。 这些数据将与恒星群模型进行比较，从而能够研究这些极端天体内部的天体物理过程，这些研究很可能适用于红移为2或以上的快速恒星形成的年轻星系，目前大部分恒星质量可能是在那里产生的。 本科生将通过NSF-REU（本科生研究经验）计划获得该项目。 该团队将继续参与非常受欢迎的“公园里的宇宙”计划，学生们将小型望远镜带到威斯康星州的州立公园，向公众开放天空。 将与南非和其他国家开展交流项目。