W. J. Maciel -
Abstract #46
NEBULAR ABUNDANCES AND THE CHEMICAL EVOLUTION OF THE GALAXY
W. J. Maciel
Elements and the cosmos, ed. M. G Edmunds, R. J. Terlevich,
Cambridge University Press, 210-217 (1992)
Planetary nebulae (PN) form a subsystem particularly suitable to study
the structure and chemical evolution of the Galaxy. As remnants of
intermediate mass stars (IMS), PN reproduce some characteristics of a
range of interstellar conditions, and are also probes of the inner
workings of these stars.
In this work, evidences based on the distribution, kinematics, and
chemical composition of PN are taken into account in order to determine
average abundances, distance independent correlations, and radial
gradients.
