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Statistics of planetary nebulae with [WR] central stars.
Gorny S.K.
2001, Low mass Wolf-Rayet Stars: origin and evolution, Ap&SS 275, 67

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Abstract:

The status of planetary nebulae with Wolf-Rayet type central stars ([WR] PN) remains one of the most important problems in the investigation of planetary nebulae. We cannot claim to understand the evolution of low and intermediate-mass stars without answering the question how [WR] PN are created.

Analyzing the statistical properties of the whole population of [WR] PN and comparing them to other planetary nebulae (non-[WR] PN) brings important information on their origin and evolutionary status. In this article I will summarize our results of this type of studies and show what limits they put on the possible evolutionary routes of [WR]\,PN creation.

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PostScript version of the paper is accessible via anonymous ftp: g00.ps.gz

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