The hierarchical growth of bright central galaxies and intracluster light as traced by the magnitude gap
Using a sample of 2800 galaxy clusters identified in the Dark Energy Survey across the redshift range $0.20 \lt z \lt 0.60$, we characterize the hierarchical assembly of bright central galaxies (BCGs) and the surrounding intracluster light (ICL). To quantify hierarchical formation we use the stellar mass-halo mass (SMHM) relation, comparing the
Golden-Marx, Jesse B. et al.
Fecha de publicación:
4
2025