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单词 Circumstellar envelope
释义

Circumstellar envelope

中文百科

星周包层

星周包层是恒星的一部分,具有大致球形的形状,但不会受到重力吸引到恒星的核心。通场星周包层形成于稠密的恒星风或出现在恒星形成之前。老年恒星的星周包层最终将会演变成原行星云,而初期恒星体的星周包尘会发展成为星周盘。

英语百科

Circumstellar envelope 星周包层

A circumstellar envelope (CSE) is a part of a star that has a roughly spherical shape and is not gravitationally bound to the star core. Usually circumstellar envelopes are formed from the dense stellar wind, or they are present before the formation of the star. Circumstellar envelopes of the old stars (Mira variables and OH/IR stars) eventually evolve into protoplanetary nebulae, and circumstellar envelopes of the young stellar objects evolve into circumstellar discs.

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更新时间:2025/6/18 13:59:34