Peculiarities in the Formation of Molecular Clouds in the Central Regions of Spiral Galaxies |
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Authors: | E. V. Volkov |
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Affiliation: | (1) V. V. Sobolev Scientific Research Institute for Astronomy, St. Petersburg University, Russia |
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Abstract: | The limitations imposed by the shear instability on the formation of gigantic molecular clouds in the central regions of spiral galaxies are examined. The criteria obtained here are illustrated using the example of six galaxies for which the detailed rotation curves are known. The different mechanisms for formation of molecular clouds which apply in the central and edge regions of disk galaxies are evaluated. |
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Keywords: | molecular clouds shear instability |
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