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Optical and UV Nebular Spectra of NGC 40

Published online by Cambridge University Press:  18 September 2017

M. Peimbert ,
S. Torres-Peimbert ,
R.E.S. Clegg  and
M.J. Seaton
M. Peimbert
Affiliation:
Instituto de Astronomia, Universidad Nacional Autónoma de Mexico
S. Torres-Peimbert
Affiliation:
Instituto de Astronomia, Universidad Nacional Autónoma de Mexico
R.E.S. Clegg
Affiliation:
Department of Physics & Astronomy, University College London, UK
M.J. Seaton
Affiliation:
Department of Physics & Astronomy, University College London, UK

Extract

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The planetary nebula NGC 40 has a WC8 central star. From analysis of IUE spectra of the star, Benvenuti, Perinotto and Willis (1981, IAU Symposium 99) obtain the remarkable abundance ratio C/He ~ 0.2 and probably no hydrogen. The question arises as to whether the nebular shell has abnormal abundances.

Type
Abstracts of Contributed Papers
Information
Symposium - International Astronomical Union , Volume 103: Planetary Nebulae , 1983 , pp. 521
Copyright
Copyright © Reidel 1983