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Do elliptical galaxies have thick disks?

Published online by Cambridge University Press:  12 April 2016

R C Thomson  and
A E Wright
R C Thomson
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge CB3 OHA, UK
A E Wright
Affiliation:
Australia Telescope National Facility, PO Box 276, Parkes, N.S.W. 2870, Australia

Abstract

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We discuss new evidence which supports the existence of thick disks in elliptical/S0 galaxies. Numerical simulations of weak interactions with thick disk systems produce shell structures very similar in appearance to those observed in many shell galaxies. We think this model presents a more plausible explanation for the formation of shell structures in elliptical/S0 galaxies than does the merger model and, if correct, supports the existence of thick disks in elliptical/S0 galaxies.

Type
IX. Theory of Interaction Stimulated Effects
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 755 - 758
Copyright
Copyright © NASA 1990

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