Ongoing Accretion onto a Galactic Disk and Primordial Galaxies

银河盘和原始星系的持续吸积

• 批准号: 1410800
• 负责人: Mary Putman
• 金额: $ 27.57万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1410800&HistoricalAwards=false
• 关键词: Ongoing; Accretion; onto; Galactic; Disk

This program will develop a better understanding of the way in which fuel for star formation settles into the galactic disk of the Milky Way from the intergalactic medium. This goal will be accomplished through the use of survey data from the Arecibo Observatory that helps trace the location of gas in and near our Milky Way galaxy. Broader impacts of the work include training of undergraduate and graduate students. The project will have a direct impact on society through a program that brings astronomers into diverse middle schools throughout New York City. The goal is to inspire students at a juncture where they often choose to turn towards or away from science.Dr. Putman and her students will construct a multiphase map of the interface between the disk and halo of the Milky Way through the combination of a catalog of clouds from the GALFA-HI Survey, examination of their dust content, and comparisons to models and multi-wavelength observational data. The process of cooling at the disk-halo interface will be explored, as well as the interplay between accretion and feedback in controlling the star formation rate.

该程序将更好地理解恒星形成的燃料的方式，从层间培养基中定位在银河系的银河系中。该目标将通过使用来自Arecibo天文台的调查数据来实现，该数据有助于追踪我们银河系中及其附近气体的位置。这项工作的更广泛影响包括对本科生和研究生的培训。 该项目将通过一个计划将天文学家带入纽约市各种中学的计划对社会产生直接影响。目的是激发学生在一个关头经常选择转向科学或远离Science.dr的学生。普特曼（Putman）和她的学生将通过Galfa-Hi调查，检查其灰尘含量的检查以及与模型和多波长观测数据的比较的组合，构建银河系磁盘和光晕之间界面的多相图。将探索在磁盘 - 哈洛接口处的冷却过程，以及在控制恒星形成速率中积聚和反馈之间的相互作用。