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Near-Infrared Spectroscopy of H2 in Proto-Planetary Nebulae

Published online by Cambridge University Press:  26 May 2016

Douglas M. Kelly  and
Bruce J. Hrivnak
Douglas M. Kelly
Affiliation:
Steward Observatory, University of Arizona, Tucson AZ 85721, USA
Bruce J. Hrivnak
Affiliation:
Department of Physics & Astronomy, Valparaiso University, Valparaiso IN 46383, USA

Abstract

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We measured 2.1 – 2.3 μm spectra for a fairly complete sample of known proto-planetary nebulae (PPN) at declinations greater than -30°. This spectral range includes the H2 emission lines 1-0 S(1), 1-0 S(0), 2-1 S(1), 2-1 S(2), and 3-2 S(3). We detected H2 emission from 16 of the 51 nebulae in our survey, including radiatively-excited H2 from several non-bipolar PPN.

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. 269 - 270
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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