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Abundances in Planetary Nebulae: Including ISO Results

Published online by Cambridge University Press:  26 May 2016

S. R. Pottasch ,
D. A. Beintema ,
J. Bernard Salas  and
W. A. Feibelman
S. R. Pottasch
Affiliation:
Kapteyn Astronomical Institute, P.O.Box 800, 9700 AV Groningen, NL
D. A. Beintema
Affiliation:
SRON Lab. for Space Research, P.O.Box 800, 9700 AV Groningen, NL
J. Bernard Salas
Affiliation:
SRON & Kapteyn Astronomical Institute, P.O.Box 800, 9700 AV Groningen, NL
W. A. Feibelman
Affiliation:
Lab. for Astronomy and Solar Physics, Code 681, Goddard Space Flight Center, MD, USA

Abstract

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The far infrared nebular spectrum provides a valuable complement to the observed lines in other spectral regions. There are several reasons for this, the most important being the large increase in the number of ions observed, and the fact that the abundances found from these lines are relatively insensitive to the electron temperature. This leads to a more accurate determination of the abundances. To date, twelve PN have had abundances determined in this way. These results are summarized. The evolution of the central star is discussed in the light of these results.

Type
Part VI: The Ionized Gas in Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 353 - 360
Copyright
Copyright © Astronomical Society of the Pacific 2003 

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