Using JWST photometry of ~17,000 galaxies, the median Balmer break strength decreases from 1.5 to 1.1 (flux ratio) from z~3.5 to z~10, driven by stellar population age, with rare extremely strong breaks at both epochs tracing distinct populations.
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2 Pith papers cite this work. Polarity classification is still indexing.
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astro-ph.GA 2years
2026 2representative citing papers
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.
citing papers explorer
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Tracing the Evolution of the Balmer Break from Cosmic Dawn to Cosmic Noon with JWST
Using JWST photometry of ~17,000 galaxies, the median Balmer break strength decreases from 1.5 to 1.1 (flux ratio) from z~3.5 to z~10, driven by stellar population age, with rare extremely strong breaks at both epochs tracing distinct populations.
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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.