The submillimeter giants

Details The submillimeter giants The submillimeter giants

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985s%26t....70..119s&link_type=abstract

Sky and Telescope (ISSN 0037-6604), vol. 70, Aug. 1985, p. 119-123.

Astronomy and Astrophysics

Astronomy

Radio Astronomy, Radio Telescopes, Submillimeter Waves, Atmospheric Attenuation, Construction, Hawaii, Parabolic Reflectors, Sierra Nevada Mountains (Ca), Spain

Scientific paper

The construction of new radiotelescopes to study the 0.3-1 mm radio band is being carried out at arid and high altitude sites around the world to avoid absorption of the radiation by atmospheric water vapor. The band offers data on the distribution of astromonical molecules in dark and dust clouds and quasars. A 30-m dish is being built at 9300 ft altitude in southern Spain, a synthesis array at 8400 ft ASL in the French Alps, and a 15-m dish at La Silla. Kitt Peak has received a new 12-m-diameter reflector and three 10.4-m dishes are operating in Owens Valley in California. A 10.4-m submillimeter dish is being constructed on Mauna Kea in Hawaii. The need to protect the devices from distortions due to moisture and vibrations is spurring the use of composite materials to retain accuracies in the tens of microns in focusing.

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