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The Dynamics of Planetary Nebulae in the Galaxy: Evidence for a Third Integral
Published online by Cambridge University Press: 25 May 2016
Abstract
The dynamical modeling of various tracer populations in our galaxy is an important tool in the study of its formation and evolution. Planetary Nebulae (PNe) seem to be particularly useful for such a study. In this contribution we attempt to link the dynamics of PNe and OH/IR stars, and confirm on dynamical grounds that both classes are indeed related by stellar evolution. Moreover, we show that 2 integrals of motion are probably not sufficient to characterize the dynamical state of the PNe: the models produce a velocity dispersion which is too low, pointing at the likely presence of a third integral.
- Type
- Chapter 6: How are we to Understand the Large Scale Structure of the ISM?
- Information
- Symposium - International Astronomical Union , Volume 169: Unsolved Problems of the Milky Way , 1996 , pp. 511 - 512
- Copyright
- Copyright © Kluwer 1996