The large-scale environment from cosmological simulations II: The
  redshift evolution and distributions of baryons
  Following Cui et al. 2018 (hereafter Paper I) on the classification of
large-scale environments (LSE) at z = 0, we push our analysis to higher
redshifts and study the evolution of LSE and the baryon distributions in them.
Our aim is to investigate how baryons affect the LSE as a function of redshift.
In agreement with Paper I, the baryon models have negligible effect on the LSE
over all investigated redshifts. We further validate the conclusion obtained in
Paper I that the gas web is an unbiased tracer of total matter -- even better
at high redshifts. By separating the gas mainly by temperature, we find that
about 40 per cent of gas is in the so-called warm-hot intergalactic medium
(WHIM). This fraction of gas mass in the WHIM decreases with redshift,
especially from z = 1 (29 per cent) to z = 2.1 (10 per cent). By separating the
whole WHIM gas mass into the four large-scale environments (i.e. voids, sheets,
filaments, and knots), we find that about half of the WHIM gas is located in
filaments. Although the total gas mass in WHIM decreases with redshift, the
WHIM mass fractions in the different LSE seem unchanged.
