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Photochemistry and Molecular Formation in Planetary Nebulae

Published online by Cambridge University Press:  26 May 2016

Tatsuhiko I. Hasegawa
Tatsuhiko I. Hasegawa*
Affiliation:
University of Calgary, Department of Physics and Astronomy, Calgary, AB T2N 1N4, Canada

Abstract

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Photo-chemical processes in hot neutral gas are summarized that are likely responsible for the destruction and formation of observed molecules in planetary nebulae. According to the hot gas scenario, detected simple molecules such as CN, HCN, C2H, and HCO+ are destroyed in a matter of a week, but are constantly and quickly re-formed.

Type
Part V: Dust and Molecules in Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 249 - 256
Copyright
Copyright © Astronomical Society of the Pacific 2003 

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