Evolution of HOD and galaxy properties in filaments and nodes of the cosmic web

• DOI: 10.48550/arxiv.2405.01671
• Publication Date: 2024-05-02
• Authors: Noelia Pérez; Luis Pereyra; Georgina Coldwell; Ignacio G. Alfaro...; Andrés N. Ruiz
• Keywords: Astrophysics of Galaxies (astro-ph.GA); FOS: Physical sciences; Astrophysics - Astrophysics of Galaxies

We study the evolution of Halo Occupation Distribution (HOD) and galaxy properties nodes filamentary structures obtained by DisPerSE from Illustris TNG300-1 hydrodynamical simulation, in redshift range $0 \leq z 2$. compute HOD filaments fit parameters to their evolution, taking into account both faint bright galaxies. In nodes, number galaxies increases with decreasing low-mass halos, while no significant differences are seen high-mass halos. Limiting shows that halos increase mass more than they accrete. For filaments, large found for galaxies, although brighter behaviour is similar nodes. The parametrization suggests have effect on required host a (central or satellite), whereas do. results indicate do not seem affect stellar content contrast, appear masses below approximately $10^{12.5} h^{-1} M_{\odot}$ at local redshift. analysis colour reddening towards lower redshift, these processes be efficient massive strong general building population within influenced accretion growth ones.