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A High-Resolution Acousto-Optical Spectrograph Suitable for CO Observations of Dark Clouds

Published online by Cambridge University Press:  25 April 2016

Jing-sheng Wang ,
B. J. Robinson ,
Geng-chen Huang  and
Robina E. Otrupcek
Jing-sheng Wang
Affiliation:
Yunnan Observatory, PO Box 110, Kunming, P. R. China
B. J. Robinson
Affiliation:
Division of Radiophysics, CSIRO, Sydney
Geng-chen Huang
Affiliation:
Shanghai Institute of Ceramics, 865 Changning Road, Shanghai, P. R. China
Robina E. Otrupcek
Affiliation:
Division of Radiophysics, CSIRO, Sydney
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Abstract

An acousto-optical spectrograph (AOS) with a high spectral resolution of 28 kHz has been developed for spectral line observations of objects, such as dark clouds, where the line-widths are low. It has been mounted on the 4-m-diameter millimetre-wave telescope at CSIRO Division of Radiophysics at Epping, NSW and successfully tested using 115 GHz Co observations of a sample of southern dark clouds. At 115 GHz the velocity resolution is 0.07 km s-1.

Type
Miscellaneous Radio Astronomy
Information
Publications of the Astronomical Society of Australia , Volume 8 , Issue 2 , 1989 , pp. 207 - 212
Copyright
Copyright © Astronomical Society of Australia 1989

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