A5064583878- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- Scientific Research and Discoveries
- Stellar, planetary, and galactic studies
California Institute of Technology
2023-2024
Max Planck Institute for Astronomy
2024
ABSTRACT As they grow, galaxies can transition from irregular/spheroidal with ‘bursty’ star formation histories (SFHs), to discy smooth SFHs. But even in simulations, the direct physical cause of such transitions remains unclear. We therefore explore this a large suite numerical experiments re-running portions cosmological simulations widely varied physics, further validated existing FIRE simulations. show that gas supply, cooling/thermodynamics, model, Toomre scale, galaxy dynamical times,...
ABSTRACT Using the cosmological simulations IllustrisTNG, we perform a comprehensive analysis of quiescent, massive galaxies at $z \gtrsim 3$. The goal is to understand what suppresses their star formation so early in cosmic time, and how other similar mass remain highly forming. As first-order result, are able produce massive, quiescent this high-redshift regime. We find that active galactic nucleus (AGN) feedback primary cause halting early, galaxies. Not only do central, supermassive...
As they grow, galaxies can transition from irregular/spheroidal with 'bursty' star formation histories (SFHs), to disky smooth SFHs. But even in simulations, the direct physical cause of such transitions remains unclear. We therefore explore this a large suite numerical experiments re-running portions cosmological simulations widely varied physics, further validated existing FIRE simulations. show that gas supply, cooling/thermodynamics, model, Toomre scale, galaxy dynamical times, and...
Using the cosmological simulations IllustrisTNG, we perform a comprehensive analysis of quiescent, massive galaxies at $z \gtrsim 3$. The goal is to understand what suppresses their star formation so early in cosmic time, and how other similar mass remain highly star-forming. We find that active galactic nuclei (AGN) feedback primary cause halting early, galaxies. Not only do central supermassive black holes quenched have earlier seed times, but they also grow faster than star-forming As...