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A Survey of Planetary Nebulae in the SMC and M31

Published online by Cambridge University Press:  19 July 2016

N. Meyssonnier ,
M. Azzopardi ,
J. Lequeux  and
R. Gathier
N. Meyssonnier
Affiliation:
Observatoire de Marseille, France
M. Azzopardi
Affiliation:
Observatoire de Marseille, France
J. Lequeux
Affiliation:
Observatoire de Marseille, France
R. Gathier
Affiliation:
European Southern Observatory, F.R.G.

Abstract

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Our general method for finding planetary nebulae (PN) is to make wide field objective-prism or objective-grating low-dispersion spectra on photographic plates, PN stand up amongst other emission-line objects either as Hα + [N II] 6548-6583 A emitters or as [O III] 50007 A emitters with faint or no continuum, higher-resolution spectroscopy is used for confirming a selection of candidates.

Type
IV. Extragalactic Nebulae
Information
Symposium - International Astronomical Union , Volume 131: Planetary Nebulae , 1989 , pp. 351
Copyright
Copyright © Kluwer 1989