Free access article

DOI: 10.1051/aas:1996112

Astronomy and Astrophysics Supplement Series, Vol. 116, April II 1996, 249-256

New abundances of southern planetary nebulae

R.D.D. Costa , C. Chiappini , W.J. Maciel and J.A. de Freitas Pacheco

Send offprint requests to: R.D.D. Costa

Instituto Astronômico e Geofísico - USP, Av. Miguel Stefano 4200, 04301-904, São Paulo - SP, Brazil
Observatoire de la Côte d'Azur, B.P. 229, 06304 Nice Cedex 4, France

Received May 24; accepted September 23, 1995

Abstract:

As a continuation of a long-term observational program with the purpose of deriving the chemical abundances of southern planetary nebulae (PN), we present here the line fluxes, colour excesses, electron temperatures and densities, and abundances of He, O, N, S, Ar and Ne for 15 PN. These objects were classified according to the Peimbert classification scheme, taking into account the chemical and kinematical properties as well as distance-independent correlations.

Key words: planetary nebulae: general --- ISM: abundances

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