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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

H. Dejonghe ,
S. Durand ,
A. Acker  and
F. Chambat
H. Dejonghe
Affiliation:
Sterrenkundig Observatorium, University of Ghent, Belgium
S. Durand
Affiliation:
Observatoire Astronomique, Université Louis Pasteur, Strasbourg, France
A. Acker
Affiliation:
Observatoire Astronomique, Université Louis Pasteur, Strasbourg, France
F. Chambat
Affiliation:
Observatoire Astronomique, Université Louis Pasteur, Strasbourg, France

Abstract

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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 

References

1. Acker, A., Ochsenbein, F., Stenholm, B., Tylenda, R., Marcout, J., Schon, C., 1992, Strasbourg-ESO catalogue of galactic planetary nebulae , ESO Google Scholar
2. Batsleer, P., & Dejonghe, H., 1994, A&A, 287, p.43 Google Scholar
3. Dejonghe, H., 1989, Ap.J., 343, p.113 Google Scholar
4. Dejonghe, H., 1993, in IAU Symp. 153, Galactic Bulges , eds. Dejonghe, H. & Habing, H., Kluwer, p.73 CrossRefGoogle Scholar
5. Arendt, R. G., et al. 1994, ApJ, 425, L85 Google Scholar
6. Durand, S., Dejonghe, H., Acker, A., 1995, A&A, in preparation Google Scholar