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Sub-Arcsecond Morphology of Planetary Nebulae

Published online by Cambridge University Press:  02 January 2013

L. F. Miranda ,
G. Ramos-Larios  and
M. A. Guerrero
L. F. Miranda*
Affiliation:
Instituto de Astrofísica de Andalucía – CSIC, Granada, Spain Facultade de Ciencias, Universidade de Vigo, Vigo, Spain
G. Ramos-Larios
Affiliation:
Instituto de Astrofísica de Andalucía – CSIC, Granada, Spain Instituto de Astronomía y Meteorología, Guadalajara (Mexico)
M. A. Guerrero
Affiliation:
Instituto de Astrofísica de Andalucía – CSIC, Granada, Spain
*
DCorresponding author. Email: [email protected]
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Abstract

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Planetary nebulae (PNe) can be roughly categorized into several broad morphological classes. The high quality images of PNe acquired in recent years, however, have revealed a wealth of fine structures that preclude simplistic models for their formation. Here we present narrow-band, sub-arcsecond images of a sample of relatively large PNe that illustrate the complexity and variety of small-scale structures. This is especially true for bipolar PNe, for which the images reveal multi-polar ejections and, in some cases, suggest turbulent gas motions. Our images also reveal the presence or signs of jet-like outflows in several objects in which this kind of component has not been previously reported.

Keywords

circumstellar matterISM: jets and outflowsplanetary nebulae
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 27 , Issue 2 , 2010 , pp. 180 - 186
Copyright
Copyright © Astronomical Society of Australia 2010

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