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Stellar clusters in the nuclear regions of AGN with the Advanced Camera for Surveys

机译:使用先进的测量相机在AGN核区中的恒星群

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We explore the role of star clusters in the nuclear regions of galaxies through their connection with active galactic nuclei (AGN). Nuclear star clusters (NCs) are conspicuous in the centers of most nearby galaxies, all along the Hubble sequence. These clusters are probably the faint-end distribution of the central supermassive black holes (SMBHs) in massive bulges. On the other hand, star formation is known to be ongoing in the majority of Seyfert nuclei and in many low-luminosity active galactic nuclei (LLAGN). We study two samples of AGN galaxies (75 Seyferts and 26 LLAGN) in the near-ultraviolet with the Hubble Space Telescope’s Advanced Camera for Surveys. We aim to better understand the connection between the growing of the SMBH and the build-up of the bulge, and we also intend to make statistical progress and determine the properties of the population of NCs coexisting with growing SMBHs.
机译:我们通过与主动银河核(AGN)的联系探索星团在星系核区域中的作用。沿哈勃序列,在大多数附近星系的中心都非常明显的是核星团。这些星团可能是巨大隆起中中央超大质量黑洞(SMBH)的微弱末端分布。另一方面,已知在大部分塞弗特核和许多低发光活性银河系核(LLAGN)中正在进行恒星形成。我们使用哈勃太空望远镜的先进测量相机研究了近紫外线中的两个AGN星系样本(75个塞弗特和26个LLAGN)。我们旨在更好地了解SMBH的增长与隆起之间的联系,我们还打算取得统计进展,并确定与SMBH增长并存的NC人口的特征。

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