Papers › The diverse star formation histories of early massive, quenched galaxies in modern...
The diverse star formation histories of early massive, quenched galaxies in modern galaxy formation simulations
Claudia del P. Lagos, Francesco Valentino, Ruby J. Wright, Anna de Graaff, Karl Glazebrook, Gabriella De Lucia, Aaron S. G. Robotham, Themiya Nanayakkara, Angel Chandro-Gomez, Matías Bravo, Carlton M. Baugh, Katherine E. Harborne, Michaela Hirschmann, Fabio Fontanot, Lizhi Xie, Harry Chittenden
The archive published only this paper's code-link row. Authors, date and abstract are from arXiv's metadata (CC0), read from the Kaggle arXiv metadata snapshot of 2026-09-12 where its title matched the archive's; the title is the archive's.
We present a comprehensive study of the star formation histories of massive-quenched galaxies at z=3 in 3 semi-analytic models (SHARK, GAEA, GALFORM) and 3 cosmological hydrodynamical simulations (EAGLE, IllustrisTNG, Simba). We study the predicted number density and stellar mass function of massive-quenched galaxies, their formation and quenching timescales and star-formation properties of their progenitors. Predictions are disparate in all these diagnostics, for instance: (i) some simulations reproduce the observed number density of very massive-quenched galaxies (>10¹¹M_⊙) but underpredict the high density of intermediate-mass ones, while others fit well the lower masses but underpredict the higher ones; (ii) In most simulations, except for GAEA and EAGLE, most massive-quenched galaxies had starburst periods, with the most intense ones happening at 4<z<5; however, only in SHARK and IllustrisTNG we do find a large number of progenitors with star formation rates >300M_⊙ yr⁻¹; (iii) quenching timescales are in the range ≈20-150~Myr depending on the simulation; among other differences. These disparate predictions can be tied to the adopted Active Galactic Nuclei (AGN) feedback model. For instance, the explicit black-hole (BH) mass dependence to trigger the "radio mode" in IllustrisTNG and Simba makes it difficult to produce quenched galaxies with intermediate stellar masses, also leading to higher baryon collapse efficiencies (≈15-30%); while the strong bolometric luminosity dependence of the AGN outflow rate in GAEA leads to BHs of modest mass quenching galaxies. Current observations are unable to distinguish between these different predictions due to the small sample sizes. However, these predictions are testable with current facilities and upcoming observations, allowing a "true physics experiment" to be carried out.
Code
Repository list and official/mentioned flags are the archive's, frozen 2025-07-28. Reachability, where shown, is from one Syntology probe window (2026-09-16 to 2026-09-18); repositories not probed show nothing. GitHub stars are not tracked.
Code Syntology ran Syntology
Not run by Syntology. Nothing on this page verifies that the listed code works.
Results from the paper archive 2025-07-28
No leaderboard rows for this paper in the archive.
Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections