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Cosmic X-ray surveys of distant active galaxies: The demographics, physics, and ecology of growing supermassive black holes

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Brandt, W. N., Alexander, D. M.·2015·The Astronomy and Astrophysics Review

Abstract

We review results from cosmic X-ray surveys of active galactic nuclei (AGNs) over the past $$\approx 15$$≈15 years that have dramatically improved our understanding of growing supermassive black holes in the distant universe. First, we discuss the utility of such surveys for AGN investigations and the capabilities of the missions making these surveys, emphasizing Chandra, XMM-Newton, and NuSTAR. Second, we briefly describe the main cosmic X-ray surveys, the essential roles of complementary multiwavelength data, and how AGNs are selected from these surveys. We then review key results from these surveys on the AGN population and its evolution (“demographics”), the physical processes operating in AGNs (“physics”), and the interactions between AGNs and their environments (“ecology”). We conclude by describing some significant unresolved questions and prospects for advancing the field.

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Metadata

Authors
Brandt, W. N., & Alexander, D. M.
Venue
The Astronomy and Astrophysics Review
Published
2015-01-30
Volume
23
Issue
1
ISSN
  • 0935-4956 (ISSN-L)
  • 1432-0754
OpenAlex
W2950472986
Cited by
340
References
5
FWCI
20.64
Type
journal article
Language
en
Open access
green

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Brandt, W. N., & Alexander, D. M. (2015). Cosmic X-ray surveys of distant active galaxies: The demographics, physics, and ecology of growing supermassive black holes. The Astronomy and Astrophysics Review. https://doi.org/10.1007/s00159-014-0081-z

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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