Abstract
Spherical stellar systems with large numbers of stars on nearly radial orbits are prone to be bar unstable. It seems likely that stars formed from a cooling flow tend to populate such orbits, thus ensuring that the underlying galaxy is barred; a simple estimate suggests that a mass deposition rate in excess of 5 M⊙ yr-1 should suffice for this purpose. We expect the figures of such bars to rotate slowly. The rate of radiation of accoustic energy by a rotating bar into the intergalactic medium proves to be small, but it is suggested that the radiation of energy into g waves in the cluster gas is likely to be an important process.
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© 1988 Kluwer Academic Publishers
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Binney, J. (1988). Dynamics of E Galaxies and Cluster Sources. In: Fabian, A.C. (eds) Cooling Flows in Clusters and Galaxies. NATO ASI Series, vol 229. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2953-1_27
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DOI: https://doi.org/10.1007/978-94-009-2953-1_27
Publisher Name: Springer, Dordrecht
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