RUI: The HI Mass Function in Different Environments

RUI：不同环境下的 HI Mass 功能

• 批准号: 0407011
• 负责人: Rebecca Koopmann
• 金额: $ 3.43万
• 依托单位: Union College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2006-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0407011&HistoricalAwards=false
• 关键词: RUI; HI; Mass; Function; Different

AST-0407011KoopmannNumerical simulations of the growth of structure predict that the nearby universe should contain large numbers of low mass halos, which by their very nature are hard to detect. Recent advances in the mapping capability of centimeter wave radio telescopes have enabled surveys for atomic hydrogen emitters, which are not ruled out by any other observations, but the low mass end of the resultant mass function is poorly determined and may depend on environment. The new Arecibo L-band Feed Array (ALFA) revolutionizes the ability of the telescope to find these systems, and the planned survey will not only provide an answer to this problem but also produce an archived dataset of value to other studies. This first phase supports the principal investigator for one year to refine the details of the collaboration with Cornell University to carry out this important work.The survey principles will be designed to maximize the scientific return, engage the broadest community of researchers, educate the next generation of students, and raise the broadest level of public interest. Meanwhile, support for this researcher from Union College will provide increased opportunities for undergraduates to receive exposure to radio astronomy, and will assist in the development of teaching modules and visitor center displays.

AST-0407011 Koopmann结构增长的数值模拟预测，附近的宇宙应该包含大量的低质量晕，这是很难检测到的。 厘米波射电望远镜测绘能力的最新进展使氢原子发射体的观测成为可能，这并不被任何其他观测所排除，但由此产生的质量函数的低质量端很难确定，可能取决于环境。 新的阿雷西博L波段馈源阵列（ALFA）彻底改变了望远镜发现这些系统的能力，计划中的调查不仅将为这个问题提供答案，而且还将产生对其他研究有价值的存档数据集。 在第一阶段，主要研究者将在一年的时间内完善与康奈尔大学合作开展这项重要工作的细节。调查原则将旨在最大限度地提高科学回报，吸引最广泛的研究人员，教育下一代学生，并提高最广泛的公共利益水平。 与此同时，联合学院对这位研究人员的支持将为本科生提供更多接触射电天文学的机会，并将协助开发教学模块和游客中心展示。