Statistics – Applications
Scientific paper
May 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979phdt.........3e&link_type=abstract
Ph.D. Thesis California Univ., Berkeley.
Statistics
Applications
1
Carbon Monoxide, Chemical Clouds, Heterodyning, Interstellar Chemistry, Receivers, Cyanoacetylene, Diplexers, Laser Applications, Line Spectra, Radiative Transfer, Schottky Diodes, Waveguides
Scientific paper
The design and construction of a receiver for use at a frequency of 346 GHz is described. The mixer's frequency response extends from 260-350 GHz with nearly constant sensitivity, with a system noise temperature of 3400 K at 318 GHz. When used on the 60 inch telescope on Mt. Lemmon, the J = 3 yields 2 line of CO at 346 GHz was detected in 9 sources, but pointing and baseline problems caused much of the data to be unreliable. A 14 point map was obtained of Orion A and is compared to the 1 yields 0 spectra. In the case of the central region of Orion A the similarity of the spectra is quite striking. This receiver is used to make observations in the 260-282 GHz retion using a 4.9 m telescope. Molecules observed included HCN, HCO(+), N2H(+), SO2, HC3N, H2CO and HNC. These observations established that the 1mm region is very rich in spectral lines of moderate strength, and that further observations in the submillimeter range should be quite productive.
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