Ring nebulae around Wolf-Rayet stars in M33

Journal Article · Wed May 01 00:00:00 EDT 1991 · Astronomical Journal; (United States)

DOI:https://doi.org/10.1086/115795· OSTI ID:5589020

Drissen, L; Shara, M M; Moffat, A F.J. ^[1]

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1. Space Telescope Science Institute, Baltimore, MD (USA) Montreal, Universite (Canada) Observatoire du Mont Megantic, Montreal (Canada)

Results of a systematic search for H II ring nebulae surrounding Wolf-Rayet (WR) stars in M33 are presented. Eleven objects are found to be good candidates, while eight others are classified as possible WR ring nebulae. The WR rings in M33 are larger on average than their Galactic counterparts, but the H-alpha luminosity of most of them is comparable to the bright Galactic wind-blown bubbles. The rings are associated with WC as well as with WN stars. 38 refs.

• OSTI ID: 5589020
• Journal Information: Astronomical Journal; (United States), Journal Name: Astronomical Journal; (United States) Vol. 101; ISSN 0004-6256; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALMER LINES
COMPARATIVE EVALUATIONS
CONFIGURATION
COSMIC RADIO SOURCES
GALAXIES
H2 REGIONS
INTERSTELLAR SPACE
MAIN SEQUENCE STARS
MILKY WAY
NEBULAE
RINGS
SPACE
SPIRAL CONFIGURATION
STARS
WOLF-RAYET STARS