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Density and kinematics of the W49A cloud core

Serabyn, E. and Güsten, R. (1991) Density and kinematics of the W49A cloud core. In: Fragmentation of Molecular Clouds and Star Formation. IAU Symposium Proceedings Series. No.147. Kluwer , Dordrecht, pp. 494-495. ISBN 9780792311584.

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The dense core of the W49A molecular cloud (Miyawaki et al. 1986, Schloerb et al. 1987) has been mapped in 5 different transitions of CS and C^(34)S, in order to determine its density structure. The three lower frequency transitions (CS J=3-2, CS J=5-4 and C^(34)S J=5-4) were observed with the IRAM 30m telescope, and the two highest frequency transitions (CS J=7-6 and C^(34)S J=7-6) with the Caltech Submillimeter Observatory. The beamsizes were in the range 12″ to 20″. As a calibration check, the CS J=7-6 line was observed with both telescopes, and was found to give a consistent temperature scale. The spectra at the peak of the emission are shown in Fig. 1.

Item Type:Book Section
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Additional Information:© 1991 IAU.
Series Name:IAU Symposium Proceedings Series
Issue or Number:147
Record Number:CaltechAUTHORS:20181211-105514509
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Official Citation:Serabyn, E., & Güsten, R. (1991). Density and kinematics of the W49A cloud core. Symposium - International Astronomical Union, 147, 494-495. doi:10.1017/S007418090024014X
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91683
Deposited By: Tony Diaz
Deposited On:11 Dec 2018 19:42
Last Modified:16 Nov 2021 03:43

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