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Author

S. Gallerani

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Preprint Oct 2026

Mergers may not be the main channel for galaxy stellar mass growth at redshift $z\gtrsim5$: Predictions from cosmological hierarchical models and simulations

Mergers are a crucial channel of galaxy growth, but their role relative to star formation remains uncertain at high redshift. Here we investigate merger rates and merger-driven stellar mass assembly for galaxies with stellar mass $M_\star \gtrsim 10^8 \, {\rm M_{\odot}}$ at $z\simeq 5-11$, by combining complementary th...

Hao Fu, Mohammadreza Ayromlou, F. Shankar et al. · 0 citations
Preprint Sep 2026

Exploring the observed properties of JWST Little Red Dots with cosmological simulations and dust radiative transfer

JWST has uncovered compact high-redshift (z>=4) sources, dubbed Little Red Dots (LRDs), characterised by a distinct V-shaped continuum. Their nature remains debated since broad-line AGN signatures coexist with non-AGN continua, marked by weak X-ray and mid-IR emission. We investigate which properties of LRDs naturally...

S. Chandna, F. Di Mascia, S. Gallerani et al. · 0 citations

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