Wolf-Rayet star

Wolf-Rayet star
Any of a class of young, very hot stars that have a very strong stellar wind and consequent broad, strong emission lines.

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  • Wolf-Rayet star — Wolf Rayet stars (often referred to as WR stars) are evolved, massive stars (over 20 solar masses), which are losing mass rapidly by means of a very strong stellar wind, with speeds up to 2000 km/s. While our own Sun loses approximately 10−14 of… …   Wikipedia

  • Wolf–Rayet star — Hubble Space Telescope image of nebula M1 67 around Wolf–Rayet star WR 124 Wolf–Rayet stars (often referred to as WR stars) are evolved, massive stars (over 20 solar masses initially), which are losing mass rapidly by means of a very strong… …   Wikipedia

  • wolf-rayet star — ¦wu̇lfrīˈā noun Usage: usually capitalized W&R Etymology: after Charles Wolf died 1918 & Georges Rayet died 1906 French astronomers : any of a class of stars whose spectra are characterized by very broad bright lines especially of helium, carbon …   Useful english dictionary

  • 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 …   Universalium

  • 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… …  

  • Wolf-Rayet — (WR) can mean: * Wolf Rayet star. * Wolf Rayet galaxy, which contains large numbers of WR stars . * Wolf Rayet nebula, which surrounds a Wolf Rayet star …   Wikipedia

  • Wolf-Rayet nebula — A Wolf Rayet nebula is a nebula which surrounds a Wolf Rayet star. A subtype of a WR nebula is the Pinwheel nebula.There are different types of WR nebula, based on their formation mechanism: * HII regions * ejecta type nebulae * wind blown… …   Wikipedia

  • 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

  • Wolf-Rayet-Sterne — Dieser Artikel oder Abschnitt ist nicht hinreichend mit Belegen (Literatur, Webseiten oder Einzelnachweisen) versehen. Die fraglichen Angaben werden daher möglicherweise demnächst gelöscht. Hilf Wikipedia, indem du die Angaben recherchierst und… …   Deutsch Wikipedia

  • Etoile Wolf-Rayet — Étoile Wolf Rayet Image du télescope spatial Hubble de la nébuleuse M1 67 autour de l étoile Wolf Rayet WR124 Une étoile Wolf Rayet (souvent abrégé en étoile WR) est une étoile chaude, massive et évoluée présentant un taux de perte de masse très… …   Wikipédia en Français

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