Glossary term: 黑洞
Description: 黑洞是引力非常大的一個空間區域，引力大到任何東西，甚至光都無法從中逃脫。
包括銀河系在內的許多星系中心都有一個大黑洞（被稱為超大質量黑洞）。
天文學家認為，較小質量黑洞的形成方式之一是大質量恆星在其生命末期發生坍縮形成的。 不過，天文學家還不知道超大質量黑洞的起源。
黑洞的外邊界被稱為事件視界。
黑洞附近的物理現象非常極端，以至於時間運行得更慢（與遠離黑洞的觀察者相比），並且在較小質量的黑洞周圍，物體會被拉伸和撕裂成碎片。落向黑洞的物質形成吸積盤。這通常伴隨著從該圓盤發出的物質噴流。黑洞吸積盤是類星體和其他活動星系核（AGN）以及許多其他 X 射線源的能量來源。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
This is an automated transliteration of the simplified Chinese translation of this term
The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".
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