Glossary term: 恒星形成
Description: 恒星的诞生源于巨型分子云中被称为核心的低温致密区域的引力坍缩,这些区域大多位于星系的旋臂中。恒星的形成涉及复杂的物理过程,发生在不同的尺度上,由引力、压力、辐射、磁场、湍流、化学等作用造成,其中有些作用至今仍不甚明了。根据母云的质量和形成阶段的吸积过程,恒星的质量从 0.08 到几百个太阳质量不等。大多数恒星都不是孤立形成的,而是恒星群的一部分。在形成阶段,中心恒星周围会形成一个原恒星盘,最终为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
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Credit: ESO/ALMA (ESO/NAOJ/NRAO)/H.Arce. 致谢:Bo Reipurth credit link
License: CC-BY-3.0 Creative Commons Attribution 3.0 Unported icons
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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