Galaxy properties and the cosmic web in simulations
  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.
