Results 1 to 10 of about 164 (112)
Wolf–Rayet stars in starburst galaxies
New Astronomy Reviews, 2000 Wolf-Rayet stars have been detected in a large number of galaxies experiencing intense bursts of star formation. All stars initially more massive than a certain, metallicity-dependent, value are believed to experience the Wolf-Rayet phase at the end of their evolution, just before collapsing in supernova explosion.
Miguel Cervino, Mas-Hesse J Miguel
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Searching for hidden Wolf-Rayet stars in the Galactic plane - 15 new Wolf-Rayet stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 Accepted for publication in MNRAS. Figures degraded in quality, full version available by anonymous ftp (ftp:astro1.shef.ac.uk, /pub/lh/hadfield.ps.gz)
A P Marston, P W Morris
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Symposium - International Astronomical Union, 1982 Sanduleak (1971) has listed five stars, not apparently associated with planetary nebulae, which show very strong 0 VI 3811,34 å emission. He pointed out that two of them are in the Magellanic Clouds and have absolute magnitudes comparable to those of classical (Population I) Wolf-Rayet stars.
M. J. Barlow, D.G. Hummer
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The Astronomy and Astrophysics Review, 1992 Recent literature on Population I Wolf-Rayet star research extending from the Milky Way to blue compact dwarf galaxies is reviewed, broken down into inventory, basic parameters and galactic distribution, atmospheres, binaries, intrinsic variability, mass loss, enrichment and evolution.
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Symposium - International Astronomical Union, 1975 This review discusses the spectral classification, the absolute magnitude, the position in stellar systems, the physical properties and the evolution of WR stars.
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(Intrinsic) Variations of Wolf-Rayet Stars [PDF]
Symposium - International Astronomical Union, 1991 Twenty - two Wolf-Rayet stars (12 of type WN and 10 of type UC) were observed in the years 1986-1990 with the VBLUW photometer of Walraven. Eight (WC and WN) objects appeared to be constant. Five of the in total 14 variable objects will be discussed in the present paper: UR46 (WN3 pec), WR50 (WC6+a), WR55 (WN8), WR86 (WC7) and WR123 (WN8).Simultaneous ...
van Genderen, A. M. +13 more
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Clumping in the Winds of Wolf–Rayet Stars [PDF]
The Astrophysical Journal, 2020 Abstract We attempt to determine the driver for clumping in hot-star winds by extending the measure of the spectral variability level of Galactic Wolf–Rayet stars to by far the hottest known among them, the WN2 star WR 2 and the WO2 stars WR 102 and WR 142. These three stars have T ⋆ = 140 and 200 kK, the last two being
André-Nicolas Chené +3 more
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Models of Rotating Wolf-Rayet Stars [PDF]
Symposium - International Astronomical Union, 1995 We explore the influence of rotation on the evolution of massive stars (40 M⊙). We find the evolution in the HRD, the initial-final mass relation, and the duration of the various WR phases to depend sensitively on the initial rotation rate. We predict that, independent of the initial rotation rate, the majority of WR stars should be slow rotators.
J. Fliegner, N. Langer
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Blobs in the Winds of Wolf-Rayet Stars [PDF]
International Astronomical Union Colloquium, 1989 Abstract. Concentrations of material have been observed to propagate in the winds of many W-R stars. These are short-lived, stochastic features of unknown origin.
C. Robert, L. Drissen, A. F. J. Moffat
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Wolf-Rayet Stars and GRB Connection [PDF]
, 2006 10 pages, 4 ps figures, LATEX. Abridged English version of paper in Astronomy Reports (2001, in press). Also to appear in Proc. 2d Rome Workshop "GRBs in the Afterglow Era"
Cherepashchuk, A. M., Postnov, K. A.
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