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Stromgren Photometry of the Central Stars of Planetary Nebulae

Published online by Cambridge University Press:  19 July 2016

R. Costero  and
J. Echevarría
R. Costero
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México
J. Echevarría
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México

Abstract

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An attempt is made to deconvolve the contribution of the central star from that of nebular emission, in small and large Planetary Nebulae. The use of medium-band Strömgren photometry is possibly a more powerful tool than that of broad-band photometries to achieve meaningful stellar parameters, specially by means of a four-channel photometer. The various methods used to subtract the nebular contribution are analysed and the results of the first ubvy and HΒ observations are presented.

Type
III. Central Stars
Information
Symposium - International Astronomical Union , Volume 131: Planetary Nebulae , 1989 , pp. 302
Copyright
Copyright © Kluwer 1989