一种新的甚宽带接收机测量的近场Galerkin谱
Spectra of Nearby Galaxies Measured with a New Very Broadband Receiver
摘要：
五学院射电天文台（FCRAO）使用一种新的宽带接收机获得了一些邻近星系的三毫米波长光谱。这个仪器，我们称之为红移搜索接收机，具有36 GHz的瞬时带宽，工作频率为74至110.5 GHz。该接收器已在马萨诸塞大学/FCRAO建成，是大型毫米波望远镜（LMT）初始仪器的一部分，主要用于确定遥远的尘埃遮蔽星系的红移。它正在FCRAO 14 m上进行测试，通过测量一些邻近星系的3毫米光谱。这些星系的化学成分存在有趣的差异。
英文摘要：
Three-millimeter-wavelength spectra of a number of nearby galaxies have been obtained at the Five College Radio Astronomy Observatory (FCRAO) using a new, very broadband receiver. This instrument, which we call the Redshift Search Receiver, has an instantaneous bandwidth of 36 GHz and operates from 74 to 110.5 GHz. The receiver has been built at UMass/FCRAO to be part of the initial instrumentation for the Large Millimeter Telescope (LMT) and is intended primarily for determination of the redshift of distant, dust-obscured galaxies. It is being tested on the FCRAO 14m by measuring the 3mm spectra of a number of nearby galaxies. There are interesting differences in the chemistry of these galaxies.
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