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Collimated Outflows in Planetary Nebulae

Published online by Cambridge University Press:  19 July 2016

Bruce Balick ,
Heather L. Preston  and
Vincent Icke
Bruce Balick
Affiliation:
Department of Astronomy, University of Washington
Heather L. Preston
Affiliation:
Department of Astronomy, University of Washington
Vincent Icke
Affiliation:
University of Washington and Sterrewacht Leiden, the Netherlands

Abstract

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The kinematics of the gas motions in several e-m E planetary nebulae (PNs) have been mapped with ∼ 1 - 2″ resolution. All of the eE PNs (e.g., NGC 2392, 3242, 6543, 6826, 7009, and 7662) show evidence of highly focused linear flows at projected velocities of 20 - 170 km s−1. The flows generally appear as linear, almost jet-like features in emission lines of low ionization. mE PNs show expanding protuberances along their polar axes.

Type
II. Nebular Properties
Information
Symposium - International Astronomical Union , Volume 131: Planetary Nebulae , 1989 , pp. 181
Copyright
Copyright © Kluwer 1989