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Proceedings Paper

433 Micron Laser Heterodyne Observations Of Galactic CO From Mauna Kea
Author(s): D. Buhl; G. A. Koepf; G. Chin; N. McAvoy; H. R. Fetterman; D. D. Peck; B. J. Clifton; P. E. Tannenwald; P. F. Goldsmith; N. R. Erickson
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Paper Abstract

A submillimeter heterodyne radiometer, developed for astronomical applications, uses an optically pumped laser local oscillator and a quasi-optical Schottky diode mixer. The resultant telescope-mounted system, which has a noise temperature less than 4000 K (double sideband) and high frequency and spatial resolution, has been used to detect the J = 6 -4- 5 rotational transition of carbon monoxide at 434 micrometers in the Orion molecular cloud. The measurements, when compared with previous millimeter-wave data, indicate that the broad carbon monoxide emission feature is produced by an optically thin gas whose temperature exceeds 180 K.

Paper Details

Date Published: 27 July 1981
PDF: 3 pages
Proc. SPIE 0280, Infrared Astronomy: Scientific/Military Thrusts and Instrumentation, (27 July 1981); doi: 10.1117/12.931955
Show Author Affiliations
D. Buhl, NASA/Goddard Space Flight Center (United States)
G. A. Koepf, NASA/Goddard Space Flight Center (United States)
G. Chin, NASA/Goddard Space Flight Center (United States)
N. McAvoy, NASA/Goddard Space Flight Center (United States)
H. R. Fetterman, Massachusetts Institute of Technology (United States)
D. D. Peck, Massachusetts Institute of Technology (United States)
B. J. Clifton, Massachusetts Institute of Technology (United States)
P. E. Tannenwald, Massachusetts Institute of Technology (United States)
P. F. Goldsmith, University of Massachusetts (United States)
N. R. Erickson, University of Massachusetts (United States)


Published in SPIE Proceedings Vol. 0280:
Infrared Astronomy: Scientific/Military Thrusts and Instrumentation
Nancy W. Boggess; Howard J. Stears, Editor(s)

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