A 500-900 GHz Heterodyne Receiver for Astronomical Spectroscopy

贾菲博士和他的团队设计并制造了一个500.900千兆赫频段的光谱仪接收器。接收器由一个冷却的，开放的。结构肖特基二极管混频器耦合准。光学到望远镜和光泵激光本地振荡器。这笔拨款将用于包装该系统，用于夏威夷的加州理工学院亚毫米天文台望远镜。贾菲博士建造的这个接收器可以对许多天体物理问题作出有价值的贡献。这些研究包括对大质量原恒星周围温暖的、超致密气体的研究，对温暖的静态气体的观察，包括对块状分子云中CII/CI/CO界面的研究，以及对原恒星流中热分子气体的研究。

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.