activity
20242026
collaborators

9 papers

astro-ph.GA2026

Quiescent fractions in high-redshift galaxy groups reflect their hot-or-cold state of gas accretion

Guillaume Elias, Emanuele Daddi, Chiara D'Eugenio +15

Cold accretion and quenching are closely related aspects of galaxy evolution, as sustained gas supply is required to maintain star formation. High-redshift galaxy groups therefore…

astro-ph.GA2026

Cosmic Vine: High abundance of massive galaxies and dark matter halos in a forming cluster at z=3.44

Nikolaj B. Sillassen, Shuowen Jin, Georgios E. Magdis +10

The Cosmic Vine is a massive protocluster at z=3.44 in the JWST CEERS field, offering an ideal laboratory for studying the early phases of cluster formation. Using the data from th…

astro-ph.GA2025

ECOGAL I. Project design and the first catalogue

Minju M. Lee, Georgios Magdis, Gabriel Brammer +10

We present ECOology for Galaxies using ALMA archive and Legacy surveys (ECOGAL), an ALMA data mining project. Using the footprints of the James Webb Space Telescope (JWST) and the…

astro-ph.GA2025

Ly-alpha emission reveals two satellite halos around massive groups at z ~ 3: the puzzling case of a quiescent central galaxy

Sicen Guo, Emanuele Daddi, Raphael Gobat +17

We present the discovery and characterisation of two Ly nebulae (LANs), RO-1001-Sat and RO-0959-Sat, as satellite structures of two giant LANs at and 3.092. They are…

astro-ph.GA2025

The Bigfoot: A footprint of a Coma cluster progenitor at z=3.98

Hanwen Sun, Tao Wang, Emanuele Daddi +13

Protoclusters, galaxy clusters' high redshift progenitors, hold the keys to understanding the formation and evolution of clusters and their member galaxies. However, their cosmolog…

astro-ph.GA2025

Noema formIng Cluster survEy (NICE): A Census of Star Formation and Cold Gas Properties in Massive protoclusters at 1.5<z<4

Luwenjia Zhou, Tao Wang, Emanuele Daddi +36

Massive protoclusters at z~1.5-4, the peak of the cosmic star formation history, are key to understanding the formation mechanisms of massive galaxies in today's clusters. However,…