October 3, 2025Open Access
In-situ vs. ex-situ drivers of galaxy quenching: critical black hole mass and main sequence universality in the FLAMINGO simulation
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Implication
Statistical analysis reveals black hole feedback and halo mass as key quenching drivers in galaxies, suggesting in-situ processes are crucial.
Key Points
- The median star-formation rate remains independent of the environment, while quiescent galaxy fractions depend on it.
- Black hole feedback is identified as the primary mechanism for quenching, particularly for central galaxies.
- In the cosmic afternoon, a clear transition in quenching behavior occurs at a critical black hole mass.
- The study combines data from 5.3 million galaxies to show both in-situ and ex-situ drivers affect galaxy quenching.
Cite This Study
Lim et al. (2025) studied this question.