The X-ray properties of z > 6 quasars: no evident evolution of accretion physics in the first Gyr of the UniverseDOI: info:10.1051/0004-6361/201936217v. 630A118
Vito, F., Brandt, W. N., Bauer, F. E., Calura, F., Gilli, R., Luo, B., Shemmer, O., Vignali, C., Zamorani, G., Brusa, M., Civano, Francesca, Comastri, A., and Nanni, R. 2019. "The X-ray properties of z > 6 quasars: no evident evolution of accretion physics in the first Gyr of the Universe." Astronomy and Astrophysics, 630 A118. https://doi.org/10.1051/0004-6361/201936217.