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De-Centered Central Stars of Planetary Nebulae

Published online by Cambridge University Press:  26 May 2016

Aubrie McLean ,
Martín A. Guerrero ,
Robert A. Gruendl  and
You-Hua Chu
Aubrie McLean
Affiliation:
Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green St., Urbana, IL 61801, USA
Martín A. Guerrero
Affiliation:
Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green St., Urbana, IL 61801, USA
Robert A. Gruendl
Affiliation:
Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green St., Urbana, IL 61801, USA
You-Hua Chu
Affiliation:
Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green St., Urbana, IL 61801, USA

Abstract

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The origin of the wide range of morphologies observed in planetary nebulae (PNe) is not well established. The influence of a binary companion of the central star can naturally explain this variety of morphologies, but very few PNe have known binary central stars. The evolution of the binary system with mass loss may result in the displacement of the central star from the nebular center. The large sample of PNe observed by HST is being used to search for de-centered central stars. Preliminary results indicate that the occurrence of de-centered central stars is widespread among all morphological types of PNe.

Type
Part VII: Nebular Morphology and Dynamics
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 541 - 542
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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