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Minibars in the Centers of Normal Galaxies

Published online by Cambridge University Press:  12 April 2016

A. V. Zasov  and
O. K. Sil’chenko
A. V. Zasov
Affiliation:
Sternberg Astronomical Institute, University av. 13, Moscow 119899, Russia
O. K. Sil’chenko
Affiliation:
Sternberg Astronomical Institute, University av. 13, Moscow 119899, Russia

Abstract

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Analysis of ionized gas velocity fields in the circumnuclear regions of 13 normal spiral galaxies has shown that about half of them reveal a discrepancy between the kinematical axis at R < 2″ and the photometric or kinematical axes of the outer regions. This result indicates a high frequency of occurrence of non-axisymmetric gravitational potentials in the inner few hundred parsecs of galaxies. The possible nature of these minibars is discussed.

Type
Part IV. Observations of Barred Galaxies: Stellar Kinematics, Bulges, AGN
Information
International Astronomical Union Colloquium , Volume 157: Barred Galaxies , 1996 , pp. 207 - 211
Copyright
Copyright © Astronomical Society of the Pacific 1996

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