English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

The Chandra Deep Fields (CDFs), being a major thrust among extragalacticX-ray surveys and complemented effectively by multiwavelength observations,have critically contributed to our dramatically improved characterization ofthe 0.5-8 keV cosmic X-ray background sources, the vast majority of which aredistant active galactic nuclei (AGNs) and starburst and normal galaxies. Inthis review, I highlight some recent key observational results, mostly from theCDFs, on the AGN demography, the interactions between AGNs and their hostgalaxies, the evolution of non-active galaxy X-ray emission, and the census ofX-ray galaxy groups and clusters through cosmic time, after providing thenecessary background information. I then conclude by summarizing somesignificant open questions and discussing future prospects for moving forward.

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