Dynamical Evolution: Spirals and Bars

dc.creatorCombes, F.
dc.date2000-08-22
dc.date.accessioned2026-07-07T01:55:01Z
dc.date.available2026-07-07T01:55:01Z
dc.descriptionNon-axisymmetric modes like spirals and bars are the main driver of the evolution of disks, in transferring angular momentum, and allowing mass accretion. This evolution proceeds through self-regulation and feedback mechanisms, such as bar destruction or weakening by a central mass concentration, decoupling of a nuclear bar taking over the gas radial flows and mass accretion, etc.. These internal mechanisms can also be triggered by interaction with the environment. Recent problems are discussed, like the influence of counter-rotation in the m=1 and m=2 patterns development and on mass accretion by a central AGN.
dc.description8 pages, 5 figures, to appear in ASP Conference Series, "Galaxy Disks and Disk Galaxies", J.G. Funes S.J. and E.M. Corsini, eds
dc.identifierhttps://arxiv.org/abs/astro-ph/0008341
dc.identifierhttp://arxiv.org/abs/astro-ph/0008341
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/1519
dc.subjectAstrophysics
dc.titleDynamical Evolution: Spirals and Bars
dc.typetext

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