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Using H$_2$ Emission to Study the Fast Wind in Proto-Planetary Nebulae

Published online by Cambridge University Press:  15 December 2006

Bruce J. Hrivnak ,
Nathan Smith ,
Kate Y.L. Su ,
Douglas M. Kelly ,
Sun Kwok  and
Raghvendra Sahai
Bruce J. Hrivnak
Affiliation:
Department of Physics and Astronomy, Valparaiso University, Valparaiso, IN 46383, USA email: bruce.hrivnak@valpo.edu
Nathan Smith
Affiliation:
CASA, University of Colorado, Boulder, CO 80309, USA
Kate Y.L. Su
Affiliation:
Steward Observatory, University of Arizona, Tucson, AZ 85721, USA
Douglas M. Kelly
Affiliation:
Steward Observatory, University of Arizona, Tucson, AZ 85721, USA
Sun Kwok
Affiliation:
Department of Physics, University of Hong Kong, Hong Kong, China
Raghvendra Sahai
Affiliation:
JPL/Caltech, 4800 Oak Grove Drive, Pasadena, CA 91109, USA
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Abstract

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We present the results of a high-resolution H$_2$ imaging and spectroscopic study of four bipolar proto-planetary nebulae: IRAS 16594–4656, Hen 3-401, Rob 22, and IRAS 17150–3224. These reveal the locations and kinematics of the H$_2$ emission and the shaping of the nebulae by their collimated fast winds.

Keywords

circumstellar matter – planetary nebulae: general – stars: AGB and post-AGB
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S234: Planetary Nebulae in our Galaxy and Beyond , April 2006 , pp. 423 - 424
Copyright
© 2006 International Astronomical Union