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Can Bars be Destroyed by Central Mass Concentrations?

Published online by Cambridge University Press:  30 March 2016

E. Athanassoula ,
W. Dehnen  and
J. C. Lambert
E. Athanassoula
Affiliation:
Observatoire de Marseille, 2 place Le Verrier, 13248 Marseille cedex 04, France
W. Dehnen
Affiliation:
Department of Physics & Astronomy, University of Leicester, Leicester LE1 7RH, UK
J. C. Lambert
Affiliation:
Observatoire de Marseille, 2 place Le Verrier, 13248 Marseille cedex 04, France

Abstract

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We use N-body simulations to follow the evolution of bars in the presence of a central mass concentration (CMC). We find that the bar amplitude decreases in response to the CMC, but the bar is not totally destroyed unless the CMC mass is several percent of that of the disc. More centrally concentrated CMCs are more efficient. The bar evolution does not stop after the CMC has fully grown, but continues well after that time.

Type
I. Joint Discussions
Information
Highlights of Astronomy , Volume 13 , 2005 , pp. 343 - 346
Copyright
Copyright © Astronomical Society of Pacific 2005

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