An analytical model of galaxies evolving along the star-forming main sequence shows that episodic quiescence or late assembly is required to reproduce observed star formation histories and avoid over-massive galaxies today.
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Observational analysis of COSMOS galaxy groups shows quiescent fraction builds steadily from z~1.5-2 with faster growth in richer groups, first RS ridgeline galaxies by z~2, a possible early overdensity at z=3.4, and no significant evolution in RS slope or scatter.
citing papers explorer
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Built to Rest: The Evolving Star-Forming Main Sequence Requires Episodic Quiescence or Late Assembly
An analytical model of galaxies evolving along the star-forming main sequence shows that episodic quiescence or late assembly is required to reproduce observed star formation histories and avoid over-massive galaxies today.
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COSMOS-Web galaxy groups: Evolution of red sequence and quiescent galaxy fraction
Observational analysis of COSMOS galaxy groups shows quiescent fraction builds steadily from z~1.5-2 with faster growth in richer groups, first RS ridgeline galaxies by z~2, a possible early overdensity at z=3.4, and no significant evolution in RS slope or scatter.