Widespread steep X-ray spectra of luminous z 5.85-7.5 quasars and their implications for future X-ray surveys

arXiv:2610.10522 · astro-ph.HE, astro-ph.GA · Submitted 2026-10-07 · Read on arXiv

astro-ph.HE, astro-ph.GA

Submitted: 2026-10-07

Updated: 2026-10-08

Terminology

• AGN — 47× in this paper · explained in 1 episode
• Calibration — 5× in this paper · explained in 7 episodes
• Consistency — 4× in this paper · explained in 3 episodes
• Aperture — 2× in this paper · explained in 1 episode
• Aperture Photometry — 2× in this paper · explained in 1 episode
• Degeneracy — 1× in this paper · explained in 3 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Selection Bias — 1× in this paper · explained in 4 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• How similar are narrow-line Seyfert 1 galaxies and high-z type 1 AGN?
• A close look at the black hole masses and hot dusty toruses of the first quasars with MIRI-MRS
• Supermassive Black Hole Winds in X-rays: SUBWAYS V. Properties of hot coronae in quasars at intermediate redshift
• GA-NIFS: an extended [OIII] halo around the sub-Eddington quasar J1342+0928 at z=7.54

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