论文标题
早期宇宙中的超大质黑洞
Supermassive Black Holes in the Early Universe
论文作者
论文摘要
高红移类星体的发现代表了对超大质量黑洞起源的挑战。在这里，考虑了两个进化方案。第一个涉及当地宇宙中巨大的黑洞，这在绝大多数是由于种子的生长而形成的，因为它们的宿主星系是根据分层图片组装而成的。在第二种情况下，质量约为100-150 m？通过积聚形成非稳态质量磁盘的气体的积聚，其存在得到了高Z数量中大量气体和灰尘的支持。这些非稳态自我修剪磁盘的模型很好地解释了高Z处的类星体的“光度质量”关系，这也表明这些物体在所谓的Eddington限制下没有辐射。
The discovery of high redshift quasars represents a challenge to the origin of supermassive black holes. Here, two evolutionary scenarios are considered. The first one concerns massive black holes in the local universe, which in a large majority have been formed by the growth of seeds as their host galaxies are assembled in accordance with the hierarchical picture. In the second scenario, seeds with masses around 100-150 M? grow by accretion of gas forming a non-steady massive disk, whose existence is supported by the detection of huge amounts of gas and dust in high-z quasars. These models of non-steady self-gravitating disks explain quite well the observed "Luminosity-Mass" relation of quasars at high-z, indicating also that these objects do not radiate at the so-called Eddington limit.
