Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981spie..280..101p&link_type=abstract
In: Infrared astronomy - Scientific/military thrusts and instrumentation; Proceedings of the Meeting, Washington, DC, April 21,
Astronomy and Astrophysics
Astronomy
1
Bolometers, Indium Antimonides, Infrared Astronomy, Optical Heterodyning, Radio Receivers, Submillimeter Waves, Airborne Equipment, Carbon, Carbon Monoxide, Far Infrared Radiation, Fine Structure, Hot Electrons, Infrared Telescopes, Interstellar Radiation, Line Spectra, Microwave Equipment, Water Vapor
Scientific paper
InSb hot electron bolometer mixer receivers have been developed for submillimeter line studies of the interstellar medium up to about 500 GHz. The receivers have been used aboard the NASA Kuiper Airborne Observatory which is transported to about 12,000 km by a C141 aircraft. Data have been obtained on new interstellar lines (such as the ground-state fine structure transition of atomic carbon at 492 GHz) and such molecular transitions as carbon monoxide and water. Other data were obtained at ground level using the 5-cm Hale telescope at Mount Palomar and the NASA Infrared Telescope facility at Mauna Kea, HI. The heterodyne bolometers have reached noise temperatures of less than 400 K at all frequencies to 500 GHz.
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