Explanation: Wolf-Rayet stars can blow bubbles. These unusual stars are much hotter and more luminous than our Sun. All extremely massive stars will eventually evolve though a Wolf-Rayet phase. Approximately 200 Wolf-Rayet stars are known in our Milky Way Galaxy. Wolf-Rayet stars generate bubbles because they continually eject their outer atmosphere as a stellar wind. This outgoing wind of particles typically carries away more than the mass of our Earth each year! The wind is caused by atmospheric particles absorbing outgoing starlight, although many details of this process are unknown. The Wolf-Rayet is the brightest star in the above picture and is in the center of the large bubble in the nebula known as NGC 2359.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Wolf-Rayet star - zvezdnyi veter - massivnye zvezdy Publikacii so slovami: Wolf-Rayet star - zvezdnyi veter - massivnye zvezdy
Sm. takzhe: LDN 1471: polost', vydutaya zvezdnym vetrom Sharpless 308: tumannost' Golova Del'fina Kol'cevaya tumannost' vokrug WR 134 Shlem Tora Kol'cevaya tumannost' WR 134 Sharpless 2-308: tumannost' Del'fin Zvezda Vol'fa-Raie WR 124 Vse publikacii na tu zhe temu >>