W. J. Maciel -
Abstract #144
THE GALACTIC BULGE: THE PROBLEM OF PLANETARY NEBULAE ABUNDANCES
F. Cuisinier, W. J. Maciel, A. Acker, J. Koepen
Science with Gemini - A south american perspective, Ed. B. Barbuy et al., 220-222 (1998) Abundances in the galactic bulge can be obtained from giant stars or planetary nebulae (PN). Planetary nebulae concentrate their radiation in a few strong emission lines, so that they can be observed at large distances. We present a study of Galactic Bulge Planetary Nebulae, based on high quality spectroscopy. Abundances for a sample of 31 objects were derived, which are compared with the abundance patterns of the disk.
