Wolf-Rayet star

/woolf"ruy ay"/; Fr. /vawlf rddann ye"/
a very hot (35,000-100,000 K) and luminous star in the early stages of evolution, with broad emission lines in its spectrum. Also called W-R star.
[1885-90; after French astronomers Charles J. E. Wolf (1827-1918) and Georges Rayet (1839-1906)]

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 any of a class of extremely hot, white stars having peculiar spectra thought to indicate either great turbulence within the star or a steady, voluminous ejection of material. A typical Wolf-Rayet star is several times the diameter of the Sun and thousands of times more luminous. Only a few hundred are known, located mostly in the spiral arms of the Milky Way Galaxy. The type was first distinguished in 1867 by the French astronomers Charles-Joseph-Étienne Wolf and Georges-Antoine-Pons Rayet.

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Universalium. 2010.

Look at other dictionaries:

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  • Wolf-Rayet star — /wʊlf ˈreɪət sta/ (say woolf rayuht stah) noun a massive star which is losing mass rapidly because of a strong stellar wind, which may result in the creation of a collapsar leading to a black hole and a gamma ray burst. {named after French… …   Australian English dictionary

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  • Wolf-Rayet-Stern — Wolf Rayet Sterne, in der Fachliteratur auch WR Sterne abgekürzt, sind die freigelegten Kerne ehemals massereicher Sterne. Sie sind nach den französischen Astronomen Charles Wolf (1827–1918) und Georges Rayet (1839–1906) benannt. Wolf Rayet Stern …   Deutsch Wikipedia

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