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Proceedings Paper

Infrared And Millimeter Wave Techniques For The Cosmic Background Explorer Satellite
Author(s): John C. Mather
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Paper Abstract

The Cosmic Background Explorer Satellite (COBE) is now under study by a NASA-appointed team of R. Weiss (MIT), J. Mather and M. Hauser (GSFC), G. Smoot (Berkeley), S. Gulkis (JPL), and D. Wilkinson (Princeton). The COBE applies existing infrared and microwave techniques to achieve a major advance in our knowledge of the very early Universe. Three instruments will cover the spectral range from 8μ to 13mm, determining both the spectrum and the angular distribution of the large scale background radiation fields. A cryogenic polarizing Michelson interferometric spectrometer will measure the spectrum of the 3°K relic radiation from the Big Bang with high precision, to probe conditions at the very earliest times. Four differential microwave radiometers will map the sky from 23 to 90 GHz in a search for anisotropy of the universe. A broadband cryogenic infrared photometer will map zodiacal dust emission, galactic dust, and an extragalactic residual component. Study of these instruments has already produced designs for ultralow sidelobe flux collectors and horn antennas over the millimeter and microwave range.

Paper Details

Date Published: 26 August 1977
PDF: 8 pages
Proc. SPIE 0105, Far Infrared/Submillimeter Wave: Technology/Applications, (26 August 1977); doi: 10.1117/12.955439
Show Author Affiliations
John C. Mather, NASA/Goddard Space Flight Center (United States)

Published in SPIE Proceedings Vol. 0105:
Far Infrared/Submillimeter Wave: Technology/Applications
Thomas S. Hartwick; Dean T. Hodges, Editor(s)

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