The effects of mass and metallicity upon planetary nebula formation

Details The effects of mass and metallicity upon planetary nebula formation The effects of mass and metallicity upon planetary nebula formation

May 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...268..145p&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 268, May 1, 1983, p. 145-154. Research supported by the Natural Sciences an

Astronomy and Astrophysics

Astrophysics

2

Metallicity, Planetary Nebulae, Stellar Evolution, Stellar Mass, Galactic Bulge, Interplanetary Magnetic Fields, Magellanic Clouds, Milky Way Galaxy

Scientific paper

A parameterized function is constructed which describes the possible dependence of planetary nebula formation upon metal abundance and stellar mass. Data on galaxies in the Local Group compared with predictions made from the parameterized function indicate that heavy element abundance is the principal agent influencing the formation of planetary nebulae; stars which are rich in heavy elements are the progenitors of planetary nebulae. This analysis, when compared with the observations, argues for a modest degree of pre-enrichment in a few of the sample galaxies. The heavy element dependence of planetary nebula formation also accounts for the deficit of planetary nebulae in the nuclei of NGC 221 and NGC 224, and in the bulge of our Galaxy.

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