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The Science Potential of Far-IR/Sub-mm Interferometry and Concepts for the SPIRIT and SPECS Missions

Published online by Cambridge University Press:  13 May 2016

David Leisawitz  and
the Far-IR Interferometry Mission Study Working Group
David Leisawitz
Affiliation:
NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA

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The FIR/SMM region is unique in the electromagnetic spectrum in its potential for vast increases in sensitivity and angular resolution, and, as a result, information vital to our understanding of the evolution of structure in the universe. About half of the luminosity in the universe is emitted in the far infrared. Evidence for this can be found both in the spectra of individual galaxies (Trentham et al. 1999) and in the cosmic FIR/SMM background found by COBE (Hauser et al. 1998; Fixsen et al. 1998; Dwek et al. 1998). JCMT/SCUBA observations suggest that “a large population of luminous, strongly obscured sources at redshifts ≲5 is missing from optical surveys” and could account for the background radiation (Blain et al. 1999). Future FIR/SMM measurements of these sources have the potential to reveal the luminosity history of the universe and will provide insight into the processes of galaxy and star formation and galaxy evolution.

Type
Prospects for High Angular Resolution Instrumentation
Information
Symposium - International Astronomical Union , Volume 205: Galaxies and their Constituents at the Highest Angular Resolutions , 2001 , pp. 438 - 439
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

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