The SPIRIT and SPECS Far-Infrared / Submillimeter Interferometry Missions

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概要

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• Space-based far IR/submillimeter (FIR/SMM) interferometry is needed to answerfundamental cosmological questions concerning the development of structure in the Universe andcould also be used to probe nearby objects such as protostars, young planetary systems, anddebris disks in unprecedented detail. We describe concepts for the Space Infrared InterferometricTelescope (SPIRIT) and the Submillimeter Probe of the Evolution of Cosmic Structure (SPECS).Both are imaging and spectral Michelson interferometers operating in the wavelength range 〜40-500 μm. The individual light-collecting mirrors are comparable in size and temperature to theHII/L2 primary mirror. SPIRIT, which could be launched in a decade, is built on a deployableboom and has a maximum baseline of 〜30-50 m, providing arcsecond resolution in the far-IR.SPECS uses formation flying to attain baseline lengths up to 〜1 km, and thus angular resolutioncomparable to that of the Hubble Space Telescope (HST), the Next Generation Space Telescope(NGST), and the Atacama Large Millimeter Array (ALMA). SPIRIT and SPECS would provideaccess to many important cooling and diagnostic spectral lines and to the bulk of the thermalemission from dust, and make observations complementary to those obtained with ALMA andNGST.

• 宇宙航空研究開発機構の論文

著者

• John C.mather

  Nasa Goddard Space Flight Center

• The Far-ir

  The Far-ir Interferometry Mission Study Working Group

• David LEISAWITZ

  NASA Goddard Space Flight Center

関連論文

• The Next Generation Space Telescope
• The SPIRIT and SPECS Far-Infrared / Submillimeter Interferometry Missions

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