SPECTROPHOTOMETRIC OBSERVATIONS OF PLANETARY-NEBULAE HIGH ABOVE THE GALACTIC PLANE

Authors
CUISINIER F ACKER A KOPPEN J
Citation
F. Cuisinier et al., SPECTROPHOTOMETRIC OBSERVATIONS OF PLANETARY-NEBULAE HIGH ABOVE THE GALACTIC PLANE, Astronomy and astrophysics, 307(1), 1996, pp. 215-224
Citations number
28
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
307
Issue
1
Year of publication
1996
Pages
215 - 224
Database
ISI
SICI code
0004-6361(1996)307:1<215:SOOPHA>2.0.ZU;2-N
Abstract
Spectrohotometric observations at high signal-to-noise ratio for a sam ple of 62 planetary nebulae are presented, together with the plasma an d abundance analyses. The objects were selected homogeneously from the 'Strasbourg-ESO Catalogue of Galactic Planetary Nebulae' by their hei ght above the disk (over 300 pc) and their H beta surface brightness ( between 10(-12) and 10(-14) mW m(-2) arcsec(-2)). 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.