Active Galactic Nucleus Activity in Giant, Low Surface Brightness Galaxies
Active Galactic Nucleus Activity in Giant, Low Surface Brightness Galaxies
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DOI：
10.1086/300558
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发表时间：
1998-10
期刊：
影响因子：
--
通讯作者：
J. Schombert
中科院分区：
文献类型：
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作者：
J. Schombert
对大型富氢盘状星系的搜索发现，与其他晚型星系相比，低光度活动星系核（AGN）特征的比例明显更高。在这个样本中选择的大约一半的星系在它们的核心有类似agn的行为；其余的则是由简单的恒星形成形成的氢核。由于AGN行为在所有的样本星系中都不明显，这些样本星系是由高气体质量选择的，我们推测燃料流速是晚期低表面亮度盘和其他活动核星系之间的共同特征。
A search of large, H I–rich disk galaxies finds a significantly higher fraction of low-luminosity active galactic nucleus (AGN) signatures compared with other late-type galaxies. Approximately half the galaxies selected in this sample have AGN-like behavior in their cores; the rest have H II nuclei resulting from simple star formation. Since AGN behavior is not evident in all the sample galaxies, which where selected by high gas mass, we speculate that it is the fuel flow rate that is the common feature between late-type low surface brightness disks and other active nuclear galaxies.