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The Molecular Bar and Arm of the Barred-Spiral Galaxy M83

Published online by Cambridge University Press:  03 August 2017

T. Handa ,
Y. Sofue  and
N. Nakai
T. Handa
Affiliation:
Institute of Astronomy, University of Tokyo Osawa, Mitaka Tokyo 181 Japan
Y. Sofue
Affiliation:
Institute of Astronomy, University of Tokyo Osawa, Mitaka Tokyo 181 Japan
N. Nakai
Affiliation:
Nobeyama Radio Observatory Minamimaki-mura, Minamisaku-gun Nagano 384-13 Japan

Abstract

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CO(J=1−0) line observations of the southern arm of the barred-spiral galaxy M83 were made with the 45-m telescope of the Nobeyama Radio Observatory with a 17″-beam. The CO emission is concentrated to the spiral arm, but it is much weaker than in the bar. The comparison between the CO flux and the far ultraviolet flux suggests the star forming efficiency is much lower in the bar than in the spiral arm.

Type
V- CO in Galactic Disks
Information
Symposium - International Astronomical Union , Volume 146: Dynamics of Galaxies and their Molecular Cloud Distributions , 1991 , pp. 156 - 158
Copyright
Copyright © Kluwer 1991 

References

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