collaborators

7 papers

astro-ph.GA2025

REBELS-IFU: on the origin of the elevated [OIII]/[CII] ratios in the early Universe

Hiddo Algera, Lucie Rowland, Renske Smit +26

We present new ALMA [OIII] observations of eight previously [CII]-detected galaxies at . Six of our targets -- the primary sample -- are…

astro-ph.GA2025

Exploring the mysterious high-ionization source powering [Ne V] in high-z analog SBS0335-052 E with JWST/MIRI

Matilde Mingozzi, Macarena Garcia Del Valle-Espinosa, Bethan L. James +19

Nearby blue compact dwarf galaxies (BCDs) share similar properties with objects from the Epoch of Reionization revealed by JWST, in terms of low stellar mass, low metallicity and h…

astro-ph.GA2025

The mass-metallicity relation as a ruler for galaxy evolution: insights from the James Webb Space Telescope

A. Pallottini, A. Ferrara, S. Gallerani +5

Galaxy evolution emerges from the balance between cosmic gas accretion, fueling star formation, and supernova (SN) feedback, regulating the metal enrichment. Hence, the stellar mas…

astro-ph.GA2025

Warm Gas in the Vicinity of a Supermassive Black hole 13 Billion Years Ago

Ken-ichi Tadaki, Federico Esposito, Livia Vallini +4

Quasars, powered by supermassive black holes (SMBH), are among the brightest objects in the universe. In the vicinity of an SMBH, X-ray photons from an active galactic nucleus (AGN…

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

A hidden active galactic nucleus powering bright [O III] nebulae in a protocluster at revealed by JWST

M. Solimano, J. González-López, M. Aravena +48

Galaxy protoclusters are sites of rapid growth, with a high density of massive galaxies driving elevated rates of star formation and accretion onto supermassive black holes. Here,…