Glossary term: 恆星形成
Description: 恆星的誕生源於巨型分子雲中被稱為核心的低溫緻密區域的引力坍縮,這些區域大多位於星系的旋臂中。恆星的形成涉及復雜的物理過程,發生在不同的尺度上,由引力、壓力、輻射、磁場、湍流、化學等作用造成,其中有些作用至今仍不甚明瞭。根據母雲的質量和形成階段的吸積過程,恆星的質量從 0.08 到幾百個太陽質量不等。大多數恆星都不是孤立形成的,而是恆星群的一部分。在形成階段,中心恆星週圍會形成一個原恆星盤,最終為行星的形成提供原材料。
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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
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見證一顆恆星的誕生
Credit: ESO/ALMA (ESO/NAOJ/NRAO)/H.Arce. 致謝:Bo Reipurth credit link
License: CC-BY-3.0 Creative Commons Attribution 3.0 Unported icons
恆星誕生環境
Credit: ALMA (ESO/NAOJ/NRAO), J. Tobin; NRAO/AUI/NSF, S. Dagnello; Herschel/ESA credit link
License: CC-BY-3.0 Creative Commons Attribution 3.0 Unported icons