Andreas L. Faisst

2 papers · Latest: April 26, 2026

Two Exciting High-redshift Galaxy Candidates Turn Out to Be Two Exciting Ultra-cool Brown Dwarfs

Two high-redshift galaxy candidates observed by JWST were reclassified as ultra-cool brown dwarfs, highlighting potential contamination in deep surveys.

2604.23668Apr 26, 2026

Galaxies & Cosmology

DeepDive: Simultaneous Formation of Massive Quiescent Galaxies in High-Redshift Galaxy Proto-clusters

JWST confirms massive quiescent galaxy overdensities in the early universe, suggesting simultaneous quenching driven by large-scale structure and AGN feedback.

2604.21007Apr 22, 2026

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