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The Chemical Features of Galactic Planetary Nebulae

Published online by Cambridge University Press:  07 August 2017

P. R. Amnuel
P. R. Amnuel*
Affiliation:
School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv, Israel

Extract

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The chemical composition of 218 galactic planatary nebulae is investigated, all the nebulae are divided into four classes according to the masses of the nebulae and progenitor stars. The values of local abundances, galactic abundances and electron temperature gradients are found for each class of nebulae. The correlations between element abundances are also investigated. The results are compared with theorical predictions.

Type
VI. Planetary Nebulae in Galactic Systems
Information
Symposium - International Astronomical Union , Volume 155: Planetary Nebulae , 1993 , pp. 575
Copyright
Copyright © Kluwer 1993