Zusammenfassung
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. 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.
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