Rapid Quenching at High Redshift
| Main Author: | Belli, Sirio |
|---|---|
| Format: | Proceeding poster |
| Terbitan: |
, 2021
|
| Online Access: |
https://zenodo.org/record/4489944 |
Daftar Isi:
- The first massive galaxies, which are observed to be already quiescent at z~3-4, must have undergone a very rapid quenching of their star formation. Modeling the number density evolution of rapidly quenching galaxies, we found that this channel accounts for about half of the total quenching rate at z~2, and substantially declines in importance at lower redshift, suggesting the existence of two distinct physical processes for fast and slow quenching. However, given the short timescales involved, rapidly quenching galaxies are very rare, and current studies are severely limited by the lack of wide space-based imaging surveys. With the Roman Space Telescope we will finally be able to accurately model the number density evolution of rapidly quenching systems and other rare galaxy populations. These results will provide new, critical constraints for models of galaxy quenching.