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arXiv 0910.4863astro-ph.CO
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核星团

Nuclear Star Clusters

Torsten Boeker

摘要:

在局部宇宙中,大多数星系的中心都被致密的、几乎无法分辨的源所占据。根据它们的结构特性、在基本平面中的位置和综合光谱,这些源显然有恒星起源。因此,它们被称为“核星团”(NC)或“恒星核”。在所有哈勃类型的星系中都发现了NCs,这表明它们的形成与星系演化有着错综复杂的联系。在这里,我回顾了一些最近的研究NC,描述他们的形成和随后的增长的想法,并触及他们可能的演化与超大质量黑洞和球状星团的联系。

英文摘要:

The centers of most galaxies in the local universe are occupied by compact, barely resolved sources. Based on their structural properties, position in the fundamental plane, and integrated spectra, these sources clearly have a stellar origin. They are therefore called "nuclear star clusters" (NCs) or "stellar nuclei". NCs are found in galaxies of all Hubble types, suggesting that their formation is intricately linked to galaxy evolution. Here, I review some recent studies of NCs, describe ideas for their formation and subsequent growth, and touch on their possible evolutionary connection with both supermassive black holes and globular clusters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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