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Molecular Gas in Galactic Nuclei: Starburst vs. Seyfert Galaxies

Published online by Cambridge University Press:  03 August 2017

Y. Taniguchi ,
N. Nakai  and
O Kameya
Y. Taniguchi
Affiliation:
Kiso Observatory, Institute of Astronomy, The University of Tokyo Mitake, Kiso, Nagano 397-01, Japan
N. Nakai
Affiliation:
Nobeyama Radio Observatory, National Astronomical Observatory of Japan Minamimaki, Minamisaku, Nagano 384-13, Japan
O Kameya
Affiliation:
Nobeyama Radio Observatory, National Astronomical Observatory of Japan Minamimaki, Minamisaku, Nagano 384-13, Japan

Extract

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We have made a search for circumnuclear 12CO (J=1−0) emission from 28 starburst and 29 Seyfert galaxies with recession velocities less than 5000 km s−1, using the Nobeyama Radio Observatory 45-m telescope. The full half-power beam width of 17 arcsec covers less than about 5 kpc in diameter for the sample galaxies. The mean beam size-to-optical diameter ratios are 0.19±0.13 and 0.16±0.11 for the starburst and Seyfert galaxies, respectively. Circumnuclear CO emission has been detected from 12 starburst and 14 Seyfert (7 type 1, 6 type 2, and one peculiar AGN) galaxies.

Type
IX- Galaxy Nuclei
Information
Symposium - International Astronomical Union , Volume 146: Dynamics of Galaxies and their Molecular Cloud Distributions , 1991 , pp. 328
Copyright
Copyright © Kluwer 1991 

References

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