X-ray constraints on the fraction of obscured active galactic nuclei at high accretion luminosities

X-ray constraints on the fraction of obscured active galactic nuclei at high accretion luminosities

The wide-area XMM-XXL X-ray survey is used to explore the fraction of obscured active galactic nuclei (AGNs) at high accretion luminosities, L-X(2-10 keV) greater than or similar to 10(44) erg s(-1), and out to redshift z approximate to 1.5. The sample covers an area of about 14 deg(2) and provides...

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Bibliographic Details
Main Authors: Georgakakis, A., Salvato, M., Liu, Z., Buchner, J., Brandt, W. N., Ananna, T. Tasnim, Schulze, A., Shen, Yue, LaMassa, S., Nandra, K., Merloni, A., McGreer, I. D.
Other Authors: Univ Arizona, Steward Observ
Language:en
Published: OXFORD UNIV PRESS 2017
Subjects:
galaxies: active
quasars: general
quasars: supermassive black holes
galaxies: Seyfert
X-rays: diffuse background
Online Access:http://hdl.handle.net/10150/625530
http://arizona.openrepository.com/arizona/handle/10150/625530

Internet

http://hdl.handle.net/10150/625530
http://arizona.openrepository.com/arizona/handle/10150/625530

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