Author

D. Wylezalek

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Preprint Sep 2026

Caught in the act: diffuse stellar and Ly$\alpha$ emission around a halo-less quasar in the assembling cluster CARLA J0800+4029 at z=2

Extended Ly$\alpha$ emission is commonly detected around luminous quasars at $z\sim2$-3 and traces cold gas in the circumgalactic environment of the AGN. Together with the spatial distribution of galaxies, Ly$\alpha$ probes gas and galaxy assembly in high-redshift overdensities. We use deep KCWI wide-field spectroscopy...

Sofia G. Gallego, Simona Mei, E. Daddi et al. · 0 citations

Open access Sep 2026

The interplay between active galactic nucleus photoionization, radio jet, and star formation in the z ∼ 3.5 radio galaxy 4C +03.24

High-redshift radio galaxies (HzRGs) are among the most powerful radio sources, and are associated with the most massive galaxies and dense environments at redshifts z,≳,1. They are ideal laboratories for studying how active galactic nucleus (AGN) events can shape the evolution of galaxies, as intense radiation, jets,...

Bruno Dall'Agnol de Oliveira, D. Wylezalek, P. Kukreti et al. · Astronomy & Astrophysics · 0 citations