Invited Presentation

The Chandra Deep Fields: Lifting the Veil on Distant Active Galactic Nuclei and X-Ray Emitting Galaxies

Author(s): Yongquan Xue (University of Science and Technology of China)

Presenter: Yongquan Xue (University of Science and Technology of China)

The Chandra Deep Fields (CDFs), being a major thrust among extragalactic X-ray surveys and complemented effectively by multiwavelength observations, have critically contributed to our dramatically improved characterization of the 0.5-8 keV cosmic X-ray background sources, the vast majority of which are distant active galactic nuclei (AGNs) and star-forming/starburst galaxies. In this talk, I review some recent key results, mostly from the CDFs (i.e., with the CDF data involved), on the AGN demography (highlighting the highly-obscured subpopulation), the interactions between AGNs and their host galaxies, the evolution of non-active (starburst and normal) galaxy X-ray emission, and the census of X-ray galaxy groups through cosmic time, after providing the necessary background information. I then conclude by summarizing some significant open questions and discussing future prospects for moving forward.