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115 GHz CO Distribution towards the Southern Coalsack

Published online by Cambridge University Press:  25 April 2016

Robina E. Otrupcek  and
Jing-sheng Wang
Robina E. Otrupcek
Affiliation:
Division of Radiophysics, CSIRO, Sydney
Jing-sheng Wang
Affiliation:
Division of Radiophysics, CSIRO, Sydney
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Abstract

Observations have been made, using the Epping 4-m radio telescope, of emission from the J = 1-0 transition of CO (115 GHz) towards the Southern Coalsack. The half-power beam-width was 2′.7 arc and the radial velocity resolution was 0.07 km s−1. The line was found to be distributed with varying intensity over an area of 63′ × 36′ arc. The mean radial velocity was −5.8 km s−1 and mean half-intensity linewidth 1.18 km s-1. A typical line temperature was 8 K with maxima exceeding 12 K. The results suggest a stable dark cloud region with no significant evidence of systematic motions.

Information

Type
Spectroscopy
Information
Publications of the Astronomical Society of Australia , Volume 7 , Issue 2 , 1987 , pp. 194 - 196
Copyright
Copyright © Astronomical Society of Australia 1987

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