Physics
Scientific paper
Sep 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ycat..33070215c&link_type=abstract
VizieR On-line Data Catalog: J/A+A/307/215. Originally published in: 1996A&A...307..215C
Physics
Planetary Nebulae
Scientific paper
Spectrohotometric observations at high signal-to-noise ratio for a sample of 62 planetary nebulae are presented, together with the plasma and abundance analyses. The objects were selected homogeneously from the `Strasbourg-ESO Catalogue of Galactic Planetary Nebulae' by their height above the disk (over 300pc) and their Hβ surface brightness (between 10-12 and 10-14mW/m2/arcsec2). The abundances of O, S, Ar, and Cl are tighly correlated. The N/O ratio shows a wide range of values, independent of He or O abundance. (1 data file).
Acker Agnés
Cuisinier Francois
Koeppen Joachim
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