Collaborative Research: The MOSFIRE Deep Evolution Field Survey

合作研究：MOSFIRE 深度进化实地调查

• 批准号: 1312780
• 负责人: Alice Shapley
• 金额: $ 19.79万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1312780&HistoricalAwards=false
• 关键词: Collaborative; Research; MOSFIRE; Deep; Evolution

To study galaxies during the cosmic era of maximum star formation and supermassive black hole growth requires observing them at great distances, corresponding to cosmological redshifts between 1.5 and 3.0. The visible light emitted by these galaxies carries information about their stellar and gaseous contents; owing to the redshift, this light is observed at infrared wavelengths. The new, NSF-funded, Multi-Object Spectrometer for Infra-Red Exploration (MOSFIRE) on the Keck I telescope represents a major development for the study of these galaxies, offering increases in sensitivity and survey efficiency by factors of approximately 5 and 100, respectively. This project, the MOSFIRE Deep Evolution Field (MOSDEF) Survey, will chart the evolution of the rest-frame optical spectra for approximately 2000 galaxies between 1.5 and 3.5, more than an order of magnitude improvement over existing surveys. The project will make use of 44 nights allocated on the Keck I telescope through 2016, and will survey three well-studied regions of the sky already having extensive multi-wavelength datasets. By combining new and existing data, the proposing team will characterize the star formation and accreting black hole activity in distant galaxies, their masses, contents and structures, and the manner in which baryonic matter passes through them. In collaboration with theorists, the MOSDEF team will use these results to test and inform forefront models of galaxy evolution. The MOSDEF spectra will be publicly released to the astronomical community to enable additional investigations. Graduate and undergraduate students will be supported by the project and involved in the research, and team members will develop pedagogical resources for K-12 teachers on the key aspects of the science and techniques.

在最大恒星形成和超级黑洞生长的宇宙时代研究星系需要在距离内观察它们，这对应于1.5至3.0之间的宇宙学红移。这些星系发出的可见光带有有关其恒星和气态内容物的信息。由于红移，在红外波长处观察到这种光。凯克I望远镜上的新的，由NSF资助的，用于红外勘探（MOSFIRE）的多对象光谱仪代表了研究这些星系的主要发展，分别通过大约5和100来提高灵敏度和调查效率。该项目是MOSFIRE DEEP EVOLUTION FIELD（MOSDEF）调查，将绘制大约2000个星系在1.5至3.5之间的剩余光谱光谱的演变，而不是现有调查的数量级改进。该项目将在2016年之前使用在Keck I望远镜上分配的44晚，并将调查已经具有广泛多波长数据集的三个经过广泛研究的天空区域。通过结合新的和现有的数据，提议团队将表征恒星形成，并在遥远的星系，其质量，内容和结构以及Baryonic物质通过它们的方式中积累黑洞活动。与理论家合作，MOSDEF团队将使用这些结果来测试并为Galaxy Evolution的前沿模型提供信息。 MOSDEF光谱将公开发布给天文学界，以实现其他调查。研究生和本科生将得到该项目并参与研究的支持，团队成员将为K-12教师开发有关科学和技术关键方面的教学资源。