Galactic ring nebulae associated with Wolf-Rayet stars. VIII Summary and atlas

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Abstract

Photographs for ten galactic ring nebulae associated with WR stars are presented, and references are given to published photographs for other such nebulae. Every WR ring nebula suggested in the literature is discussed and reevaluated. Fabry-Perot data have been obtained for two new nebulae in order to diagnose their formation mechanisms. Seven stellar wind-blown bubble type (W type), two stellar ejecta type, four shell-structured H II region type (R_s type), and two amorphous region type nebulae are acknowledged. Most W-type nebulae are associated with early-type WN stars, while most R_s-type nebulae surround WC stars. The implications of statistical results for these ring nebulae are discussed.

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