Galaxy properties and the cosmic web in simulations

Abstract

We seek to understand the relationship between galaxy properties and their local environment, which calls for a proper formulation of the notion of environment. We analyse the GIMIC suite of cosmological hydrodynamical simulations within the framework of the cosmic web as formulated by Hoffman et al., focusing on properties of simulated DM haloes and luminous galaxies with respect to voids, sheets, filaments and knots - the four elements of the cosmic web. We find that the mass functions of haloes depend on environment, which drives other environmental dependence of galaxy formation. The web shapes the halo mass function, and through the strong dependence of the galaxy properties on the mass of their host haloes, it also shapes the galaxy-(web) environment dependence.

11 pages, 7 figures, 2 tables

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Cited by in corpus (12)

• Galaxy And Mass Assembly (GAMA): The galaxy luminosity function within the cosmic web
• The effect of cosmic web filaments on the properties of groups and their central galaxies
• Caught in the cosmic web: Environmental effect on halo concentrations, shape, and spin
• The large-scale environment from cosmological simulations I: The baryonic cosmic web
• Halo abundances within the cosmic web
• Galaxy properties in the cosmic web of EAGLE simulation
• Swarm Intelligence-based Extraction and Manifold Crawling Along the Large-Scale Structure
• Cold and Hot gas distribution around the Milky-Way-M31 system in the HESTIA simulations
• On the Mass Assembly History of the Local Group
• A robust determination of halo environment in the cosmic field
• Lagrangian Volume Deformations around Simulated Galaxies
• Subhalo abundance and satellite spatial distribution in Milky Way-Andromeda-like paired haloes