论文标题
Astraeus VI：AGN的分层组件及其在电离时期的大规模效应
Astraeus VI: Hierarchical assembly of AGN and their large-scale effect during the Epoch of Reionization
论文作者
论文摘要
在这项系列的第六次工作中，我们使用Astraeus（N-Body暗物质模拟中星系形成的半数字辐射转移耦合）框架来研究宇宙来源的来源的性质。我们扩展了Astraeus，它已经将星系形成半分析模型与详细的半数字回离方案耦合，以包括一个黑洞形成，生长和从相关AGN（活性银河系核）产生电离辐射的模型。我们校准了我们的基金AGN模型，以重现Z〜5时的降压光度函数，并探索所得AGN种群在恢复宇宙中的作用。我们发现，在所有产生合理的AGN光度函数的模型中，星系在电离时期的电离预算压倒性占主导地位，而AGN占Z = 6的电离预算的1-10％，并且开始在Z <5以下扮演角色。
In this work, the sixth of a series, we use the ASTRAEUS (semi-numerical rAdiative tranSfer coupling of galaxy formaTion and Reionization in N-body dark matter simUlationS) framework to investigate the nature of the sources that reionized the Universe. We extend ASTRAEUS, which already couples a galaxy formation semi-analytical model with a detailed semi-numerical reionization scheme, to include a model for black hole formation, growth, and the production of ionizing radiation from associated AGN (active galactic nuclei). We calibrate our fiducial AGN model to reproduce the bolometric luminosity function at z ~ 5, and explore the role of the resulting AGN population in reionizing the Universe. We find that in all the models yielding a reasonable AGN luminosity function, galaxies dominate overwhelmingly the ionizing budget during the Epoch of Reionization, with AGN accounting for 1-10% of the ionizing budget at z=6 and starting to play a role only below z < 5.
