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5.18. Molecular gas in the poststarburst galaxy NGC7331

Published online by Cambridge University Press:  25 May 2016

T. Tosaki  and
Y. Shioya
T. Tosaki
Affiliation:
Gunma Astronomical Observatory, Ohdomo, 1-18-7, Maebashi, Gunma, 371, Japan
Y. Shioya
Affiliation:
Astronomical Institute, Tohoku University, Aoba, Sendai, 980-77, Japan

Extract

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To understand the origin and evolution of starburst activity, we must study the full evolution of starburst; i.e., pre-, on-going, and post-starburst phases. It seems reasonable to suppose the numerous A-type stars indicate past starburst and they show strong Balmer absorption. NGC7331, nearby early-type spiral galaxy, is one of the poststarburst galaxies which show strong Balmer absorption. The optical spectra of NGC7331 were dominated by component of intermediate-age (5 × 109 years) stellar populations (Ohyama & Taniguchi 1996). We present the result of the high resolution CO observations of NGC7331 using Nobeyama Milimeter Array.

Type
Part II. Nuclear Interstellar Medium
Information
Symposium - International Astronomical Union , Volume 184: The Central Regions of the Galaxy and Galaxies , 1998 , pp. 247 - 248
Copyright
Copyright © Kluwer 1998 

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