Do black holes affect how galaxies evolve?

超大质量黑洞现在被认为潜伏在大多数星系的中心，但目前还不清楚这些黑洞是如何形成的，是什么推动了它们在宇宙历史上的后续增长，以及它们如何影响它们所在的星系。该项目将侧重于识别不断增长的黑洞-被视为活动星系核（AGN）-并将这些AGN的属性与星系的演化联系起来。星系遵循一系列的演化路径，它们的大小，形态，星星形成率，恒星种群和气体性质随着时间的推移而变化。然而，黑洞的作用和活动星系核对这些过程的影响仍然不清楚。我们将使用最新的星系巡天，结合来自广泛设施（包括哈勃太空望远镜和凯克天文台）的数据，以确定不同宇宙时代和不同演化状态的星系。然后，我们将使用多波长数据集-包括X射线数据（来自Chandra，XMM-牛顿和努斯塔），红外成像和无线电数据-来识别这些星系内的活动星系核并确定它们的属性（例如它们的光度，黑洞吸积率和它们的遮蔽水平）。然后，我们将跟踪活动星系核的活动水平如何取决于星系的性质，以提供新的见解，燃料黑洞增长的过程中不断发展的星系人口和调查黑洞对星系的影响，他们躺在。

Supermassive black holes are now thought to lurk at the centres of most, if not all, galaxies but it is still unclear how these black holes form, what drives their subsequent growth over the history of the Universe, and how they affect the galaxies they lie in. This project will focus on identifying growing black holes - seen as Active Galactic Nuclei (AGN) -and connecting the properties of these AGN with the evolution of galaxies. Galaxies follow a range of evolutionary pathways, whereby their sizes, morphologies, star formation rates, stellar populations and gas properties change over time. However, the role of the black hole and the impact of an AGN on these processes remains unclear.We will use the latest galaxy surveys, incorporating data from a wide range of facilities (including the Hubble Space Telescope and Keck Observatory) to identify galaxies at different cosmic epochs and in different evolutionary states. We will then use multiwavelength datasets - including X-ray data (from Chandra, XMM-Newton, and NuSTAR), infrared imaging, and radio data - to identify AGN within these galaxies and determine their properties (such as their luminosities, black hole accretion rates, and their level of obscuration). We will then track how the levels of AGN activity depend on the galaxy properties to provide new insights into the processes that fuel black hole growth across the evolving galaxy population and investigate the impact of black holes on the galaxies they lie in.