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首页> 外文会议>Conference on space telescopes and instrumentation >The Far Infrared Spectroscopic Explorer (FIRSPEX): Probing the lifecycle of the ISM in the Universe
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The Far Infrared Spectroscopic Explorer (FIRSPEX): Probing the lifecycle of the ISM in the Universe

机译：远红外光谱浏览器（FIRSPEX）：探索ISM在宇宙中的生命周期

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The Far Infrared Spectroscopic Explorer (FIRSPEX) is a novel European-led astronomy mission concept developed to enable large area ultra high spectroscopic resolution surveys in the THz regime. FIRSPEX opens up a relatively unexplored spectral and spatial parameter space that will produce an enormously significant scientific legacy by focusing on the properties of the multi-phase ISM, the assembly of molecular clouds in our Galaxy and the onset of star formation; topics which are fundamental to our understanding of galaxy evolution. The mission uses a heterodyne instrument and a .1.2 m primary antenna to scan large areas of the sky in a number of discreet spectroscopic channels from L2. The FIRSPEX bands centered at [CI] 809 GHz, [NII] 1460 GHz, [CII]1900 GHz and [OI]4700 GHz have been carefully selected to target key atomic and ionic fine structure transitions difficult or impossible to access from the ground but fundamental to the study of the multi-phase ISM in the Universe. The need for state-of-the-art sensitivity dictates the use of superconducting mixers configured either as tunnel junctions or hot electron bolometers. This technology requires cooling to low temperatures, approaching 4K, in order to operate. The receivers will operate in double sideband configuration providing a total of 7 pixels on the sky. FIRSPEX will operate from L2 in both survey and pointed mode enabling velocity resolved spectroscopy of large areas of sky as well as targeted observations.
机译：远红外光谱探险仪（FIRSPEX）是一种新颖的欧式LED天文特派团概念，以实现THZ制度的大面积超高频分辨率调查。 FIRSPEX通过专注于多相ISM的性质，在我们的星系中的分子云组合和星形成的发作来产生相对未探索的光谱和空间参数空间，这将产生极具显着的科学遗产。对我们对银河演变的理解的基础知识。特派团使用外差仪器和一个.1.2米主天线，以在L2的许多谨慎的光谱通道中扫描大区域。在[CI] 809 GHz，[NII] 1460 GHz，[CII] 1900GHz和[oi] 4700 GHz的FILSPEX频带已被精心地选择旨在从地面上难以或无法进入的关键原子和离子细结构过渡对宇宙中的多相ISM研究的基础。最先进的敏感性的需求决定了使用作为隧道结或热电子钻头的超导混合器。该技术需要冷却至低温，接近4K，以便操作。接收器将以双边带配置运行，在天空中提供总共7个像素。 FIRSPEX将在调查和指向模式下的L2运行，从而使速度已解析的大面积天空和有针对性的观察。

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