NASA Goddard Space Flight Center
NASA Goddard Space Flight Center
The Far-IR Interferometry Mission Study Working Group
出版者
宇宙科学研究所
出版者（英）
Institute of Space and Astronautical Science
雑誌名
The Institute of Space and Astronautical Science report. S.P. : Mid- and Far-Infrared Astronomy and Future Space Mission
巻
14
ページ
219 - 224
発行年
2000-12
抄録（英）
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.
The SPIRIT and SPECS Far-Infrared / Submillimeter Interferometry Missions
SA4592253.pdf
(219.57KB)
