Wolf-Rayet star

Wolf-Rayet star

[woolf-rahy-ey; French vawlf-ra-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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World English Dictionary
Wolf-Rayet star (ˈwʊlfˈreɪət)
any of a small class of very hot intensely luminous stars surrounded by a rapidly expanding envelope of gas
[C19: named after Charles Wolf (1827--1918) and Georges Rayet (1839--1906), French astronomers]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica

wolf-rayet star

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-Etienne Wolf and Georges-Antoine-Pons Rayet.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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