Far-IR/submillimeter space interferometry: scientific motivation and technology requirements

2001 IEEE Aerospace Conference Proceedings (Cat. No.01TH8542) Pub Date : 2001-03-10 DOI:10.1109/AERO.2001.931527

D. Leisawitz, W. Danchi, M. DiPirro, L. Feinberg, D. Gezari, M. Hagopian, J. Mather, S. Moseley, R. Silverberg, W. Langer, M. Shao, M. Swain, H. Yorke, J. Staguhn, Xiaolei Zhang

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引用次数: 3

Abstract

Far infrared interferometers in space would enable extraordinary measurements of the early universe, the formation of galaxies, stars, and planets, and would have great discovery potential. Half the luminosity of the universe and 98% of the photons released since the Big Bang appear at far-IR and submillimeter wavelengths (40 to 500 /spl mu/m). Because the Earth's atmosphere prevents sensitive observations from the ground at wavelengths shorter than about 300 /spl mu/m, and large effective apertures are required to achieve sub-arcsecond angular resolution, this is one of the last unexplored frontiers of observational astronomy. We present the engineering and technology requirements that stem from a set of compelling scientific goals and discuss possible configurations for two proposed NASA missions, the Space Infrared Interferometric Telescope (SPIRIT) and the Submillimeter Probe of the Evolution of Cosmic Structure (SPECS).

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远红外/亚毫米空间干涉测量:科学动机和技术要求

太空中的远红外干涉仪将能够对早期宇宙、星系、恒星和行星的形成进行非凡的测量，并将具有巨大的发现潜力。宇宙的一半亮度和大爆炸以来释放的98%的光子出现在远红外和亚毫米波长(40到500 /spl μ m /m)。由于地球的大气层阻止了地面上波长小于300 /spl mu/m的敏感观测，并且需要大的有效孔径才能达到亚弧秒角分辨率，这是观测天文学最后未开发的前沿之一。我们提出了来自一系列引人注目的科学目标的工程和技术要求，并讨论了两个拟议的NASA任务的可能配置，即空间红外干涉望远镜(SPIRIT)和亚毫米宇宙结构演化探测器(SPECS)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2001 IEEE Aerospace Conference Proceedings (Cat. No.01TH8542)

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