A 500-900 GHz Heterodyne Receiver for Astronomical Spectroscopy
A 500-900 GHz Heterodyne Receiver for Astronomical Spectroscopy
批准号:
8817544
负责人:
Daniel Jaffe
金额:
$14.85万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1989
资助国家:
美国
项目状态:
已结题
起止时间:
1989-03-15 至 1991-12-31
中文摘要
贾菲博士和他的团队设计并建造了一台适用于500.900吉赫频段的光谱仪接收器。该接收器由一个冷却的开放式肖特基二极管混频器组成,准光耦合到望远镜和光泵浦的激光本机振荡器。这笔赠款将用于包装该系统,以便在夏威夷的加州理工学院亚毫米天文台望远镜上使用。杰菲博士建造的接收器可以为解决许多天体物理问题做出宝贵的贡献。这些包括对大质量原恒星周围温暖、超稠密气体的研究,对温暖静止气体的观测,包括对块状分子云中CII/CI/CO界面的研究,以及对原恒星流动中热分子气体的研究。
英文摘要
Dr. Jaffe and his group have designed and constructed a spectrometer receiver for the 500.900 Gigahertz frequency band. The receiver consists of a cooled, open.structure Schottky diode mixer coupled quasi.optically to the telescope and to an optically pumped laser local oscillator. This grant will be used to package the system for use on the California Institute of Technology Submillimeter Observatory telescope in Hawaii. The receiver built by Dr. Jaffe can make a valuable contribution to many astrophysical problems. These include studies of warm, ultra.dense gas in the immediate surroundings of massive protostars, observations of warm quiescent gas including studies of CII/CI/CO interfaces in clumpy molecular clouds, and investigations of hot molecular gas in protostellar flows.
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批准号:1447832
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I-Corps Node: Southwest Alliance for Entrepreneurial Innovation Node (SAEIN)
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财政年份:2014
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MRI: Development of a High Resolution Infrared Spectrograph with a Large Spectral Grasp
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批准号:1229522
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财政年份:2012
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依托单位:
Collaborative Research: Mercury in the Atmosphere Over the Eastern United States
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批准号:1217010
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资助金额:$98.46万
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Collaborative Research: Reno Atmospheric Mercury Inter-comparison Experiment
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财政年份:2011
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负责人:Daniel Jaffe
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依托单位:
Influence of Free Tropospheric Ozone and Particulate Matter (PM) on Surface Air Quality across the West Coast of the United States
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批准号:1066032
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项目类别:Continuing Grant
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资助金额:$82.1万
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财政年份:2011
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负责人:Daniel Jaffe
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依托单位:
Western Airborne Mercury Observations (WAMO)
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批准号:0836464
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项目类别:Continuing Grant
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资助金额:$32.08万
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财政年份:2008
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负责人:Daniel Jaffe
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依托单位:
Workshop on Reducing the Uncertainty in Measurements of Atmospheric Mercury; Seattle, Washington; October 23-25, 2008
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批准号:0850545
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项目类别:Standard Grant
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资助金额:$3.28万
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财政年份:2008
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负责人:Daniel Jaffe
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依托单位:
Understanding the Influence of Global Air Pollution on U.S. Air Quality Through Observations at the Mt. Bachelor Observatory
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批准号:0724327
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项目类别:Continuing Grant
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资助金额:$59.24万
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财政年份:2007
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负责人:Daniel Jaffe
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依托单位:
Collaborative Research: Ultra-Precision Silicon Immersion Gratings Collaborative Research: Ultra-Precision Silicon Immersion Gratings for Infrared Spectroscopy
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批准号:0705064
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项目类别:Continuing Grant
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资助金额:$65.06万
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财政年份:2007
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负责人:Daniel Jaffe
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依托单位:
Influence of Global Sources on Free Tropospheric Ozone and Aerosols in the Western United States
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批准号:0425262
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项目类别:Standard Grant
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资助金额:$60.92万
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财政年份:2004
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负责人:Daniel Jaffe
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依托单位:
Photochemical Ozone Budget of the Eastern North Pacific Atmosphere II (PHOBEA II)
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批准号:0089929
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项目类别:Continuing Grant
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资助金额:$50.84万
-
财政年份:2001
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负责人:Daniel Jaffe
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依托单位:
Photochemical Ozone Budget of the Eastern North Pacific Atmosphere (PHOBEA)
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批准号:9896270
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项目类别:Continuing Grant
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资助金额:$21.98万
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财政年份:1998
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负责人:Daniel Jaffe
-
依托单位:
Two New Views of the Dense Interstellar Medium
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批准号:9530695
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项目类别:Continuing Grant
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资助金额:$25.59万
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财政年份:1996
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负责人:Daniel Jaffe
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依托单位:
Photochemical Ozone Budget of the Eastern North Pacific Atmosphere (PHOBEA)
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批准号:9529604
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项目类别:Continuing Grant
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资助金额:$30.02万
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财政年份:1996
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负责人:Daniel Jaffe
-
依托单位:
A Study of the High Latitude Nitrogen Oxide Reservoir
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批准号:9215127
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项目类别:Continuing Grant
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资助金额:$38.26万
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财政年份:1992
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负责人:Daniel Jaffe
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依托单位:
A 600-900 GHz Receiver for Astronomical Spectroscopy
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批准号:9117373
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项目类别:Continuing Grant
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资助金额:$21.57万
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财政年份:1992
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负责人:Daniel Jaffe
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依托单位:
Ground Based Measurements of Nitrogen Oxides as Part of the Pacific Exploratory Mission-West (PEM-WEST) Program
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批准号:9022004
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项目类别:Standard Grant
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资助金额:$10.81万
-
财政年份:1991
-
负责人:Daniel Jaffe
-
依托单位:
国内基金
海外基金
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