论文标题
低音。 xxxvi。限制本地超级黑洞 - 与低音DR2 AGN的光环连接
BASS. XXXVI. Constraining the Local Supermassive Black Hole - Halo Connection with BASS DR2 AGN
论文作者
论文摘要
我们使用Swift/BAT AGN光谱调查（Bass DR2）中AGN的聚类统计量和光度函数研究了本地宇宙中超大质量黑洞（SMBHS）及其宿主暗物质光晕之间的联系。通过将AGN活性从N体模拟中进行快照光环目录中，我们测试了一种方案，其中SMBH质量与固定恒星质量的暗物质（子）晕质量相关。我们将其与没有此相关性的模型进行比较，在该模型中，仅恒星质量决定了SMBH质量。我们发现，尽管这两个简单的模型都能够在很大程度上重现AGN的丰度和整体聚类，但黑洞质量与光晕质量紧密相关的模型被数据优先于$1.8σ$。当在黑洞质量质量相关性上包括独立测量时，该模型优先为$4.6σ$。我们表明，带有黑洞质量的聚类趋势可以进一步打破两种情况之间的变性，并且我们的首选模型再现了大型和小黑洞质量之间1 Halo尺度上测得的聚类差异。这些结果表明，光环结合能从根本上与超大质量黑洞的生长有关。
We investigate the connection between supermassive black holes (SMBHs) and their host dark matter halos in the local universe using the clustering statistics and luminosity function of AGN from the Swift/BAT AGN Spectroscopic survey (BASS DR2). By forward-modeling AGN activity into snapshot halo catalogs from N-body simulations, we test a scenario in which SMBH mass correlates with dark matter (sub)halo mass for fixed stellar mass. We compare this to a model absent of this correlation, where stellar mass alone determines the SMBH mass. We find that while both simple models are able to largely reproduce the abundance and overall clustering of AGN, the model in which black hole mass is tightly correlated with halo mass is preferred by the data by $1.8σ$. When including an independent measurement on the black hole mass-halo mass correlation, this model is preferred by $4.6σ$. We show that the clustering trends with black hole mass can further break the degeneracies between the two scenarios, and that our preferred model reproduces the measured clustering differences on 1-halo scales between large and small black hole masses. These results indicate that the halo binding energy is fundamentally connected to the growth of supermassive black holes.
