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| Paper: |
The Realm of the First Quasars in the Universe: The X-ray View |
| Volume: |
373, The Central Engine of Active Galactic Nuclei |
| Page: |
724 |
| Authors: |
Vignali, C.; Brandt, W.N.; Shemmer, O.; Steffen, A.; Schneider, D.P.; Kaspi, S. |
| Abstract: |
We review the X-ray studies of the highest redshift quasars, focusing on the results obtained with Chandra and XMM-Newton. Overall, the X-ray and broad-band properties of z > 4 quasars and local quasars are similar, suggesting that the small-scale X-ray emission regions of active galactic nuclei (AGN) are insensitive to the significant cosmic changes occurring from z≈0–6. |
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