The interpretation of low-redshift galaxy surveys is more
complicated than the interpretation of CMB temperature
anisotropies. First, the matter distribution evolves nonlinearly at
low redshift, limiting the use of perturbative methods. Secondly,
we...
Galaxy formation is a complex, hierarchical, highly non-linear
process, which involves gravitational collapse of dark matter and
baryons, supersonic, highly compressible and turbulent flows of
gas, star formation, stellar feedback, as well as...