activity
19992026
most citedThe synthesis of the cosmic X-ray background in the Chandra and XMM-Newton era

929 citations · 4.2k across the 87 of their papers we have counts for

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Showing 2024Show all

22 papers · 1 filter

astro-ph.GA2024

The radio properties of the JWST-discovered AGN

G. Mazzolari, R. Gilli, R. Maiolino +23

We explore the radio emission of JWST-selected Broad Line AGN (BLAGN, or type 1) in the GOODS-N field. We use deep radio data at different frequencies (144\,MHz, 1.5\,GHz, 3\,GHz,…

astro-ph.GA20246 cited

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…

astro-ph.GA2024

The near-infrared SED of blue quasars: what drives the evolution of the dusty torus?

Bartolomeo Trefoloni, Roberto Gilli, Elisabeta Lusso +5

A fundamental ingredient in the unified model of active galactic nuclei (AGN) is the obscuring torus, whose innermost, hottest region dominates the near infrared (NIR) emission. Ch…

astro-ph.GA2024

The Dual Nature of GHZ9: Coexisting Active Galactic Nuclei and Star Formation Activity in a Remote X-ray Source at z = 10.145

Lorenzo Napolitano, Marco Castellano, Laura Pentericci +33

We present James Webb Space Telescope (JWST)/NIRSpec PRISM spectroscopic characterization of GHZ9 at z= 10.145 0.010, currently the most distant source detected by the Chandr…

astro-ph.GA2024

An X-ray Significantly Variable, Luminous, Type 2 Quasar at z = 2.99 with a Massive Host Galaxy

Xiurui Zhao, Stefano Marchesi, Marco Ajello +8

We present a comprehensive X-ray analysis and spectral energy distribution (SED) fitting of WISEA J171419.96+602724.6, an extremely luminous type 2 quasar at = 2.99. The source…