27 July 1981 433 Micron Laser Heterodyne Observations Of Galactic CO From Mauna Kea
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Proceedings Volume 0280, Infrared Astronomy: Scientific/Military Thrusts and Instrumentation; (1981) https://doi.org/10.1117/12.931955
Event: 1981 Technical Symposium East, 1981, Washington, D.C., United States
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.
© (1981) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. Buhl, D. Buhl, G. A. Koepf, G. A. Koepf, G. Chin, G. Chin, N. McAvoy, N. McAvoy, H. R. Fetterman, H. R. Fetterman, D. D. Peck, D. D. Peck, B. J. Clifton, B. J. Clifton, P. E. Tannenwald, P. E. Tannenwald, P. F. Goldsmith, P. F. Goldsmith, N. R. Erickson, N. R. Erickson, } "433 Micron Laser Heterodyne Observations Of Galactic CO From Mauna Kea", Proc. SPIE 0280, Infrared Astronomy: Scientific/Military Thrusts and Instrumentation, (27 July 1981); doi: 10.1117/12.931955; https://doi.org/10.1117/12.931955
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