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Molecular Bars in Spiral Galaxies

Published online by Cambridge University Press:  12 April 2016

Jean L. Turner
Jean L. Turner*
Affiliation:
Department of Physics & Astronomy, UCLA, Los Angeles, CA 90095-1562

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Images of molecular gas in spiral galaxies show two types of bar structure: large-scale bars, which are correlated with the presence of stellar bars, and generally follow the spiral structure, and nuclear “bars” of a few hundred parsecs in size, which show no direct correlation with the presence of a stellar bar. The dynamical origin of nuclear molecular bars is unclear, although they are consistent with radial inflow of gas into the nucleus, and subsequent evolution of the gas structure.

Type
Part III. Observations of Barred Galaxies: Gas Distributions, Kinematics
Information
International Astronomical Union Colloquium , Volume 157: Barred Galaxies , 1996 , pp. 143 - 149
Copyright
Copyright © Astronomical Society of the Pacific 1996

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