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The Halos of NGC 6543 and NGC 6826

Published online by Cambridge University Press:  19 July 2016

A. Manchado ,
S. R. Pottasch  and
A. Mampaso
A. Manchado
Affiliation:
Instituto de Astrofísica de Canarias, Tenerife, Spain
S. R. Pottasch
Affiliation:
Kapteyn Astron. Institute, Groningen, the Netherlands
A. Mampaso
Affiliation:
Instituto de Astrofísica de Canarias, Tenerife, Spain

Abstract

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Long slit low resolution (3.4 A) spectra of the planetary nebulae NGC 6543 and NGC 6826, obtained using the 2.5-m Isaac Newton Telescope (La Palma) with the Image Photon Counting System (IPCS), indicate different physical conditions in the outer halos than in the central zone, with an outward increase of electronic temperature. The estimated mass contained in these halos is considerably larger than the values of the inner nebulae.

Type
II. Nebular Properties
Information
Symposium - International Astronomical Union , Volume 131: Planetary Nebulae , 1989 , pp. 196
Copyright
Copyright © Kluwer 1989