activity
20242026
collaborators

5 papers

astro-ph.HE2026

The WISSHFUL program: the highest redshift UFO discovered in a non-lensed QSO

G. Lanzuisi, L. Borrelli, E. Piconcelli +28

We present the first results from the WISSHFUL program, an XMM-Newton heritage program targeting luminous QSOs at Cosmic Noon. We report on recent simultaneous XMM-Newton and NuSTA…

astro-ph.GA2025

A deep X-ray look to the most obscured quasar at z~3.6 and its environment

I. Villani, L. Zappacosta, E. Piconcelli +17

The most luminous and obscured quasars (QSOs) detected in infrared all-sky surveys could represent a key co-evolutionary phase from nuclear to circum-galactic (CG) scales in the fo…

astro-ph.GA2025

The WISSH quasar project. XII. X-ray view of the most luminous quasi-stellar objects at Cosmic Noon

C. Degli Agosti, C. Vignali, E. Piconcelli +25

To improve our knowledge of nuclear emission in luminous QSOs at Cosmic Noon, we studied the X-ray emission of the WISE/SDSS-selected hyper-luminous (WISSH) QSO sample: 85 broad-li…

astro-ph.GA2025

HYPERION: broad-band X-ray-to-near-infrared emission of Quasars in the first billion years of the Universe

I. Saccheo, A. Bongiorno, E. Piconcelli +41

We aim at characterizing the X-ray-to-optical/near-infrared broad-band emission of luminous QSOs in the first Gyr of cosmic evolution to understand whether they exhibit differences…

astro-ph.GA2024

HYPERION. Shedding light on the first luminous quasars: A correlation between UV disc winds and X-ray continuum

A. Tortosa, L. Zappacosta, E. Piconcelli +41

One of the main open questions in the field of luminous () quasars (QSOs) at is the rapid formation (Gyr) of their superm…