Do fast winds dominate the dynamics of planetary nebulae?

Details Do fast winds dominate the dynamics of planetary nebulae? Do fast winds dominate the dynamics of planetary nebulae?

2005-12-05

arxiv.org/abs/astro-ph/0512099v1

Astronomy and Astrophysics

Astrophysics

17 pages, 9 figures, accepted for 'Diffuse Matter from Star Forming Regionss to Active Galaxies' - A volume Honouring John Dys

Scientific paper

A review of recent observations of the kinematics of six objects that represent the broad range of phenomena called planetary nebulae (PNe) is presented. It is demonstrated that Hubble-type outflows are predominant, consequently it is argued that ballistic ejections from the central stars could have dominated the dynamical effects of the fast winds in several, and perhaps all, of these objects. An alternative possibility, which involves an extension to the Interacting Winds model, is considered to explain the dynamics of evolved planetary nebuale.

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