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Glossary term: 中子星

Description: 中子星是一個非常密集和緊湊的恆星殘骸,形成於大質量恆星核心的坍塌。質量約為八倍太陽質量或更多的恆星在其恆星演化的最後,核心會坍塌,觸發超新星爆炸。坍塌的核心密度大於大多數原子核,並主要由中子組成。這一點的原因是,在大質量恆星極熱和極密的坍塌核心中,質子和電子結合形成中子。中子星的下限質量為1.4倍太陽質量,上限約為3倍太陽質量——超過這個質量,物體將坍塌為黑洞。高度磁化的中子星被稱為磁星。已知的絕大多數中子星以射電脈衝星的形式被觀測到。

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This is an automated transliteration of the simplified Chinese translation of this term

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Related Media


中子星顯示為一個藍色光點,周圍環繞著物質外殼,顯示為紅色和綠色的光環

大質量恆星的死亡

Caption: 用地球上和太空中的望遠鏡拍攝到的鄰近小麥哲倫雲星系中一顆中子星的多波段圖像。中子星(在這裡被看作是被紅色環包圍的藍色斑點)是大質量恆星引力坍縮、壓縮和爆炸的最終產物,被嵌入其超新星殘餘物(綠色)中。
Credit: ESO/NASA, ESA and Hubble Heritage Team (STScI/AURA)/F.Vogt et al. credit link

License: CC-BY-4.0 Creative Commons 姓名標示 4.0 國際 (CC BY 4.0) icons