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On the internal kinematics of PNe

Published online by Cambridge University Press:  30 August 2012

Ralf Jacob ,
Detlef Schönberner ,
Holger Lehmann ,
Alena Zwanzig ,
Christer Sandin  and
Matthias Steffen
Ralf Jacob
Affiliation:
Leibniz-Institut für Astrophysik Potsdam, An der Sternwarte 16, D–14482 Potsdam, Germany email: [email protected]
Detlef Schönberner
Affiliation:
Leibniz-Institut für Astrophysik Potsdam, An der Sternwarte 16, D–14482 Potsdam, Germany email: [email protected]
Holger Lehmann
Affiliation:
Thüringer Landessternwarte Tautenburg, Sternwarte 5, D–07778 Tautenburg, Germany
Alena Zwanzig
Affiliation:
Leibniz-Institut für Astrophysik Potsdam, An der Sternwarte 16, D–14482 Potsdam, Germany email: [email protected]
Christer Sandin
Affiliation:
Leibniz-Institut für Astrophysik Potsdam, An der Sternwarte 16, D–14482 Potsdam, Germany email: [email protected]
Matthias Steffen
Affiliation:
Leibniz-Institut für Astrophysik Potsdam, An der Sternwarte 16, D–14482 Potsdam, Germany email: [email protected]
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Abstract

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Our sample of round/elliptical double-shell PNe around central stars (CSs) with H-rich surface chemistry covers all evolutionary phases across the HRD. By means of high-resolution and high-S/N spectra we determine bulk matter velocities of the inner wind-driven rims and the maximum (= post-shock) gas velocities of the surrounding thermally expanding shells. Studying the details of the internal kinematics allows a look at processes of PN formation and at PN expansion history helping, for instance, to determine expansion distances.

Keywords

hydrodynamicsplanetary nebulae: generalstars: AGB and post-AGB
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S283: Planetary Nebulae: An Eye to the Future , July 2011 , pp. 400 - 401
Copyright
Copyright © International Astronomical Union 2012

References

Corradi, R. L. M., Steffen, M., Schönberner, D., & Jacob, R. 2007, A&A, 474, 529 Google Scholar
Howard, J. W., Henry, R., & McCarthy, S. 1997, MNRAS, 284, 465 CrossRefGoogle Scholar
Schönberner, D., Jacob, R., Steffen, M., et al. 2005a, A&A, 431, 963 Google Scholar
Schönberner, D., Jacob, R., & Steffen, M. 2005b, A&A, 441, 573 Google Scholar
Schönberner, D., Jacob, R., Sandin, C., & Steffen, M. 2010, A&A, 523, A86 Google Scholar