Supermassive Black-Hole Growth Over Cosmic Time: Active Galaxy Demography, Physics, and Ecology from Chandra Surveys

Abstract

Extragalactic X-ray surveys over the past decade have dramatically improved understanding of the majority populations of active galactic nuclei (AGNs) over most of the history of the Universe. Here we briefly highlight some of the exciting discoveries about AGN demography, physics, and ecology with a focus on results from Chandra. We also discuss some key unresolved questions and future prospects.

7 pages, 4 figures, to appear in Proceedings of the National Academy of Sciences, invited review from the symposium "Chandra's First Decade of Discovery", September 2009, Boston, Massachusetts

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Cited by in corpus (29)

• The Nuclear Spectroscopic Telescope Array (NuSTAR) Mission
• The Chandra Deep Field-South Survey: 4 Ms Source Catalogs
• What Drives the Growth of Black Holes?
• Cosmic X-ray Surveys of Distant Active Galaxies: The Demographics, Physics, and Ecology of Growing Supermassive Black Holes
• Color-Magnitude Relations of Active and Non-Active Galaxies in the Chandra Deep Fields: High-Redshift Constraints and Stellar-Mass Selection Effects
• The Extended Chandra Deep Field-South Survey: Optical spectroscopy of faint X-ray sources with the VLT and Keck
• X-ray Emission from Optically Selected Radio-Intermediate and Radio-Loud Quasars
• Uncovering obscured luminous AGN with WISE
• A Population of X-ray Weak Quasars: PHL 1811 Analogs at High Redshift
• The NuSTAR Extragalactic Survey: A First Sensitive Look at the High-Energy Cosmic X-ray Background Population
• Evolution in the Black Hole - Galaxy Scaling Relations and the Duty Cycle of Nuclear Activity in Star-Forming Galaxies
• X-ray Spectral Constraints for z~2 Massive Galaxies: The Identification of Reflection-Dominated Active Galactic Nuclei
• Tracking Down the Source Population Responsible for the Unresolved Cosmic 6-8 keV Background
• X-ray Bright Active Galactic Nuclei in Massive Galaxy Clusters II: The Fraction of Galaxies Hosting Active Nuclei
• The Chandra Deep Fields: Lifting the Veil on Distant Active Galactic Nuclei and X-Ray Emitting Galaxies
• X-ray Bright Active Galactic Nuclei in Massive Galaxy Clusters I: Number Counts and Spatial Distribution
• Eddington ratio Distribution of X-ray selected broad-line AGNs at 1.0<z<2.2
• The high-redshift (z>3) AGN population in the 4 Ms Chandra Deep Field South
• GTC Spectra of z ~ 2.3 Quasars: Comparison with Local Luminosity Analogues
• A Spectroscopic Survey of WISE-selected Obscured Quasars with the Southern African Large Telescope
• X-ray AGN in the XMM-LSS galaxy clusters: no evidence of AGN suppression
• Formation of supermassive black holes in galactic nuclei II: retention and growth of seed intermediate-mass black holes
• Investigating the relationship between AGN activity and stellar mass in zCOSMOS galaxies at 0<z<1 using emission line diagnostic diagrams
• The XXL Survey: XII. Optical spectroscopy of X-ray-selected clusters and the frequency of AGN in superclusters
• X-ray spectroscopy of the Compton-thick Seyfert 2 ESO 138-G1
• Characterizing the WISE-selected Heavily Obscured Quasar Population with Optical Spectroscopy from the Southern African Large Telescope
• The Most Obscured AGNs in the XMM-SERVS Fields
• The distribution and lifetime of powerful radio galaxies as a function of environment and redshift
• An observational link between AGN Eddington ratio and [NII]λ6583/Ha at 0.6<z<1.7