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Astronomical Studies with the Caltech Submillimeter Observatory

与加州理工学院亚毫米天文台进行天文学研究

基本信息

批准号：
9313929
负责人：
金额：
$ 692万
依托单位：
California Institute of Technology
依托单位国家：
美国
项目类别：
Cooperative Agreement
财政年份：
1993
资助国家：
美国
起止时间：
1993-12-01 至 1997-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9313929&HistoricalAwards=false
关键词：
Astronomical Studies Caltech Submillimeter Observatory

项目摘要

AST-9313929. California Institute of Technology. PI: T. G. Phillips Astronomical Studies with the Caltech Submillimeter Observatory This award supports research, technological development and student education at the Caltech Submillimeter Observatory (CSO). The Observatory consists of a precision 10.4m antenna enclosed in a dome located near the summit of Mauna Kea, Hawaii. The CSO's mission is to carry out spectroscopic and continuum observations of astronomical objects in the wavelength range 1mm-350 m; the opacity of the Earth's atmosphere to radiation at these wavelengths is the reason for the observatory's location at an altitude of nearly 4,300m. The observatory was constructed with funds from the National Science Foundation (NSF) during the period 1984-1987. As of this writing, it is presently the only US facility capable of operations throughout the submillimeter atmospheric window. Over the next three years, the CSO will continue to study the physics and chemistry of the interstellar medium in the Milky Way and other galaxies. This research will be carried out primarily through spectral line surveys, searches for new hydride molecules and by observing major interstellar cloud cooling lines, notably those of atomic carbon. Planned technical developments include the installation of a chopping secondary reflector, new feed legs and new Cassegrain optics which will allow the introduction of bolometer and SiS focal plane array receivers. ***

AST-9313929。加州理工学院。 PI：T. G. Phillips 与加州理工学院亚毫米天文台的天文研究该奖项支持加州理工学院亚毫米天文台 (CSO) 的研究、技术开发和学生教育。该天文台由一个精密的 10.4m 天线组成，位于夏威夷莫纳克亚山顶附近的圆顶内。 CSO的任务是在1mm-350 m波长范围内对天文物体进行光谱和连续观测；地球大气层对这些波长辐射的不透明度是天文台选在海拔近 4,300m 的原因。该天文台是在 1984 年至 1987 年期间由美国国家科学基金会 (NSF) 资助建造的。截至撰写本文时，它是目前唯一能够在亚毫米大气窗口内运行的美国设施。未来三年，CSO将继续研究银河系和其他星系中星际介质的物理和化学。这项研究将主要通过谱线调查、寻找新的氢化物分子以及观察主要的星际云冷却线（尤其是原子碳的冷却线）来进行。计划的技术开发包括安装斩波二次反射器、新的馈源腿和新的卡塞格伦光学器件，这将允许引入辐射热测量计和 SiS 焦平面阵列接收器。 ***