论文标题
部分可观测时空混沌系统的无模型预测
Testing the evolutionary pathways of galaxies and their supermassive black holes and the impact of feedback from Active Galactic Nuclei via large multiwavelength datasets
论文作者
论文摘要
这仍然是激烈的争论，超级质量黑洞（SMBH）如何增长，而活跃银河核（AGN）的反馈在SMBH和星系的共同进化中所起的作用。为了测试理论模型提出的协同进化，我们在宽的红移范围内编译了5639 X射线检测到的AGN的大量AGN样品，涵盖了近三个数量级的X射线光度。在{\ it {cosmos-legacy}}，bo $ \ rm \ ddot {o} $ tes，xmm- {\ it {xxl}}和efeds字段中检测到了agn。使用特定的恒星形成速率估计值，我们将AGN宿主星系分为星形形成（SF），Starburst（SB）和静态（Q）。我们的结果表明，与SF和Q相比，SB系统中的AGN积聚有所增加。我们的分析显示，使用m $ _*$的L $ _x $的轻度增加。 L $ _X $/SFR比率对M $ _*$的依赖性较弱，在固定的M $ _*$下，它在Q系统中最高。后一种趋势主要由Q状态中SFR的显着下降驱动。从SB/SF到Q的SFR中测得的强变化反映了与AGN反馈的合并模型中预测的那些。但是，观察到的L $ _X $中观察到的轻度变化与相同的型号有所不同。我们还研究了星系控制样品SFR的演变，发现它与X射线AGN非常相似。这表明AGN在恒星形成淬灭中起次要作用，或者两个过程的相对时间表不同。
It is still a matter of intense debate how supermassive black holes (SMBH) grow, and the role played by feedback from active galactic nuclei (AGN) in the co-evolution of SMBHs and galaxies. To test the coevolution proposed by theoretical models, we compile a large AGN sample of 5639 X-ray detected AGN, over a wide redshift range, spanning nearly three orders of magnitude in X-ray luminosity. The AGN have been detected in the {\it{COSMOS-Legacy}}, the Bo$\rm \ddot{o}$tes, the XMM-{\it{XXL}} and the eFEDS fields. Using the specific star formation rate estimates, we split the AGN host galaxies into star forming (SF), starburst (SB) and quiescent (Q). Our results show that the AGN accretion is increased in SB systems compared to SF and Q. Our analysis reveals a mild increase of L$_X$ with M$_*$. The L$_X$/SFR ratio has a weak dependence on M$_*$, and at fixed M$_*$ it is highest in Q systems. The latter trend is mostly driven by the significant drop in SFR in the Q state. The measured strong variations in SFR from the SB/SF to Q mirror those predicted in merger models with AGN feedback. However, the observed mild variations in L$_X$ are at variance with the same models. We also study the evolution of SFR for a galaxy control sample and found that it is very similar to that of X-ray AGN. This suggests that either AGN play a minor role in the star formation quenching, or the relative timescales of the two processes are different.
