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CO(J=2-1) Observations of the Edge-on Galaxy NGC 4631

Published online by Cambridge University Press:  03 August 2017

Y. Sofue ,
T. Handa ,
G. Golla  and
R. Wielebinski
Y. Sofue
Affiliation:
Institute of Astronomy, University of Tokyo, Mitaka, Tokyo 181
T. Handa
Affiliation:
Institute of Astronomy, University of Tokyo, Mitaka, Tokyo 181
G. Golla
Affiliation:
Institute of Astronomy, University of Tokyo, Mitaka, Tokyo 181 Max-Planck-Institut f”ur Radioastronomie, Bonn 1, FRG
R. Wielebinski
Affiliation:
Max-Planck-Institut f”ur Radioastronomie, Bonn 1, FRG

Abstract

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The interacting edge-on galaxy NGC 4631 has been observed in the 12CO(J = 2 − 1) line emission using the IRAM 30-m telescope with a resolution of 13″ (330 pc). The molecular gas is strongly concentrated in a ring-like disk of 1 kpc radius, which is rotating rigidly. Line proriles show several velocity components, which are attributable to spiral arms. Although the J=2−1 to 1−0 transition line ratio indicates that the gas is generally opaque against the lines, we find some optically thinner regions, as well.

Type
IX- Galaxy Nuclei
Information
Symposium - International Astronomical Union , Volume 146: Dynamics of Galaxies and their Molecular Cloud Distributions , 1991 , pp. 329 - 330
Copyright
Copyright © Kluwer 1991 

References

de Bruyn, A.G. 1977, Astron. Astrophys., 58, 221.Google Scholar
Hummel, E., Lesch, H., Wielebinski, R., Schlickeiser, R. 1988, Astron. Astrophys., 197, L29.Google Scholar
Klein, U., Wielebinski, R., and Beck, R. 1984, Astron. Astrophys., 133, 19.Google Scholar
Sofue, Y., Handa, T., Golla, G., Wielebinski, R. 1990, Publ. Astron. Soc. Japan, No. 3, in press.Google Scholar
Sofue, Y., Nakai, N., and Handa, T. 1989, Publ. Astron. Soc. Japan, 41, 937.Google Scholar
Weliachew, L., Sancisi, R., and Guélin, M., 1978, Astron. Astrophys., 65, 37.Google Scholar