PN and galactic chemical evolution
Abstract
Description
Recent applications of PN to the study of galactic chemical evolution are reviewed, such as PN and stellar populations, abundance gradients, including their space and time variations, determination of the He/H radial gradient and of the helium-to-metals enrichment ratio, and the [O/Fe] x [Fe/H] relation in the solar neighbourhood and in the galactic bulge.
8 pages, 3 postscript figures, TeX, uses psfig.sty, to be published in: Planetary Nebulae and their Role in the Universe, IAU Symposium 209, edited by R. Sutherland, S. Kwok, M. Dopita, ASP (2002) also available at http://www.iagusp.usp.br/~maciel/index.html
8 pages, 3 postscript figures, TeX, uses psfig.sty, to be published in: Planetary Nebulae and their Role in the Universe, IAU Symposium 209, edited by R. Sutherland, S. Kwok, M. Dopita, ASP (2002) also available at http://www.iagusp.usp.br/~maciel/index.html