Planetary nebulae with [WR] nuclei. A statistical approach.

Details Planetary nebulae with [WR] nuclei. A statistical approach. Planetary nebulae with [WR] nuclei. A statistical approach.

Mar 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001rmxac..10....9p&link_type=abstract

The Seventh Texas-Mexico Conference on Astrophysics: Flows, Blows and Glows (Eds. William H. Lee and Silvia Torres-Peimbert) Rev

Astronomy and Astrophysics

Astrophysics

Ism: Abundances, Ism: Kinematics And Dynamics, Planetary Nebulae: General, Stars: Wolf-Rayet

Scientific paper

Preliminary results from high resolution spectroscopy for a selected sample of planetary nebulae with WR nucleus or weak-emission line star (wels) are presented. The observed objects spread over a wide range in stellar characteristics: early and late [WC]-type stars and wels have been selected. Nebular densities and temperatures, as well as ionic and total abundances and expansion velocities, have been derived. The results are used to perform a statistical study of the objects in order to find possible relationships among the different stellar and nebular parameters and to analyze the effect of the WR wind on the nebular shell.

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