Description This release provides the current working-paper manuscript and accompanying workbook for the analysis of environment-dependent galaxy maturity after maximal conditioning on halo mass, stellar mass, redshift, and host richness. The main empirical result is a residual large-scale environment–maturity signal confined to satellites in low-mass halos. After halo-mass stratification and within-stratum adjustment, denser 10-Mpc-scale environments are associated with more mature stellar populations (higher Dn4000) and lower specific star-formation rates. The effect is reproduced across two independent satellite-probability regimes and two independent maturity/quenching tracers, and remains stable after additional control for host richness. The most parsimonious interpretation is preprocessing, although galactic conformity, halo-internal assembly effects, and residual catalogue systematics cannot yet be excluded with the present data. This release supersedes the previous intermediate manuscript state and follows the earlier frozen notebook release.
Patrick Hilgers (Mon,) studied this question.