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The effect of a bar on the kinematics of a central ring structure in NGC 4736

Published online by Cambridge University Press:  07 August 2017

P. Pişmiş  and
E. Moreno
P. Pişmiş
Affiliation:
Instituto de Astronomía, Apartado Postal 70-264 C.P. 04510, México, D.F.
E. Moreno
Affiliation:
Instituto de Astronomía, Apartado Postal 70-264 C.P. 04510, México, D.F.

Abstract

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We analyze the kinematics of the gaseous ring in the central region of NGC 4736 considering an ejection mechanism for the formation of the ring in a non-axisymmetric potential. A barred spiral of strength 10 or 25 per cent of the axisymmetric background is consistent with van der Kruit (1974) observational data.

Type
Contributed Papers
Information
Symposium - International Astronomical Union , Volume 153: Galactic Bulges , 1993 , pp. 405 - 406
Copyright
Copyright © Kluwer 1993 

References

Pişmiş, P. & Moreno, E. 1992, in preparation.Google Scholar
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van der Kruit, P.C. 1974, Ap.J., 188, 3.Google Scholar