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单词 stellar wind
释义

stellar wind


stellar wind

W0167300 (wĭnd)n. The varying flow of plasma ejected from the surface of a star into interstellar space.

stel′lar wind′


n. the radial outflow of ionized gas from a star.

stellar wind

The flow of plasma into space from the surface of a star.

stellar wind


stellar wind

The steady stream of matter ejected from many types of stars, including the Sun (see solar wind). Although the mass loss is small in sunlike stars, it has been found to be very considerable in red giants and in hot luminous ultraviolet stars, particularly in Of stars and Wolf-Rayet stars. This large mass loss could have a substantial effect on the final evolution of the stars into either white dwarfs or into more massive neutron stars (or black holes). In hot stars the stellar winds are thought to be produced by radiation pressure of the intense ultraviolet radiation acting on the atoms in the stars' atmospheres. In red giants with hot coronae and low gravity the winds may simply be the expansion of the coronal gases into space. See also T Tauri wind.

stellar wind

[′stel·ər ′wind] (astronomy) The flow of ionized gas from the surface of a star into interstellar space.
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