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Mass loss processes in hot evolved stars: Planetary Nebula nuclei in the large Magellanic Cloud

Published online by Cambridge University Press:  25 May 2016

L. Bianchi
Affiliation:
1Johns Hopkins University, USA 2Osservatorio Astronomico di Torino, Italy
E. Vassiliadis
Affiliation:
3Instituto de Astrofísica de Canarias, Spain
M. A. Dopita
Affiliation:
4Mount Stromlo and Siding Spring Observatories, Australia

Extract

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As part of a broad study of stellar winds in different galaxies, to establish observational constraints on the influence of metallicity on the mass loss process, we investigate the winds of planetary nebula (PN) nuclei in the Large Magellanic Cloud. Theoretically, the radiation pressure mechanism implies a strong dependence of the wind acceleration on the element abundances. Observationally, model predictions have been tested using Pop. I stars in the Magellanic Clouds (Puls et al. 1996, A&A, 305, 171) and massive stars in the nearby galaxies M31, M33 and NGC 6822 (Bianchi et al. 1996, AJ, 111, 2303; Bianchi et al. 1996, in prep.). We now extend this investigation to low luminosity, evolved objects.

Type
VIII. Planetary Nebulae in Extragalactic Systems
Copyright
Copyright © Kluwer 1997