Cosmic stellar mass density
= Cosmic stellar mass density
{title2=$\rho_*^{\rm com}=\int_0^\infty M_*n_*(M_*)\,dM_*$}
The <cosmic stellar mass density> is the <mass> moment of a <galaxy stellar mass function> in a stated <volume> convention. With a comoving <mass> function it is <mass> per <comoving volume>, while proper density is larger by $(1+z)^3$. Comparing it to a critical or matter density requires keeping the epoch and <volume> convention explicit.