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1.7. Secular dynamical evolution of spiral galaxies and the formation of galactic bulges

Published online by Cambridge University Press:  25 May 2016

Xiaolei Zhang
Xiaolei Zhang*
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden St., MS 78, Cambridge, MA 02138, USA

Abstract

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We show that a recently discovered spiral-induced radial mass accretion process could account for the formation of the Galactic Bulge in a Hubble time. This process is thus expected to be important in the formation of bulges in spiral galaxies, and in the secular evolution of galaxies along the Hubble sequence from late to earlier types.

Type
Part I. Stellar Cluster, Star Formation
Information
Symposium - International Astronomical Union , Volume 184: The Central Regions of the Galaxy and Galaxies , 1998 , pp. 29 - 30
Copyright
Copyright © Kluwer 1998 

References

Zhang, X. 1996, ApJ 457, 125.CrossRefGoogle Scholar
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Zhang, X. 1998b, ApJ submitted.Google Scholar
Zhang, X., Wright, M., Alexander, P. 1993, ApJ 418, 100.Google Scholar