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We briefly review how X-ray observations of high-redshift active galactic nuclei (AGNs) at z = 4–7 have played a critical role in understanding their basic demographics as well as their… Click to show full abstract
We briefly review how X-ray observations of high-redshift active galactic nuclei (AGNs) at z = 4–7 have played a critical role in understanding their basic demographics as well as their physical processes; for example, absorption by nuclear material and winds, accretion rates, and jet emission. We point out some key remaining areas of uncertainty, highlighting where further Chandra and XMM-Newton observations/analyses, combined with new multiwavelength survey data, can advance understanding over the next decade.
Keywords:
high redshift;
galactic nuclei;
active galactic;
xmm newton;
chandra xmm;
redshift active
Journal Title: Astronomische Nachrichten
Year Published: 2017
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Journal Title: Astronomische Nachrichten
Year Published: 2017
Link to full text (if available)
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recommendations!