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Astrophysics and Space Science

, Volume 87, Issue 1–2, pp 313–331 | Cite as

Ring nebulae associated with of stars: Statistics, classification, origin

  • T. A. Lozinskaya
Article

Abstract

The ring nebulae associated with galactic Of stars is considered on the grounds of the list of Of nebulae proposed by lozinskaya and Lomovsky (1982). Taking into account the selection effects, about 80% of Of stars are shown to be associated withHii regions and about 30–50% of these regions have shell structures. Four types of nebulae associated with Of stars are resolved: amorphousHii regions, ring-likeHii regions, wind-blown bubbles, and stellar ejectas. These types appear to be identical to the morphology of nebulae around WR stars proposed by Chu (1981). Observational data are presented and the nature of a number of Of ring nebulae of different types is discussed.

Keywords

Observational Data Selection Effect Shell Structure Ring Nebula 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© D. Reidel Publishing Co. 1982

Authors and Affiliations

  • T. A. Lozinskaya
    • 1
  1. 1.Sternberg Astronomical InstituteThe UniversityMoscowU.S.S.R.

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