The non-zero mass of neutrinos suppresses the growth of cosmic structure on
small scales. Since the level of suppression depends on the sum of the masses
of the three active neutrino species, the evolution of large-scale structure is
a promising tool to constrain the total mass of neutrinos and possibly shed
light on the mass hierarchy. In this work, we investigate these effects via a
large suite of N-body simulations that include massive neutrinos using an
analytic linear-response approximation: the Cosmological Massive Neutrino
Simulations (MassiveNuS). The simulations include the effects of radiation on
the background expansion, as well as the clustering of neutrinos in response to
the nonlinear dark matter evolution. We allow three cosmological parameters to
vary: the neutrino mass sum M_nu in the range of 0-0.6 eV, the total matter
density Omega_m, and the primordial power spectrum amplitude A_s. The rms
density fluctuation in spheres of 8 comoving Mpc/h (sigma_8) is a derived
parameter as a result. Our data products include N-body snapshots, halo
catalogues, merger trees, ray- traced galaxy lensing convergence maps for four
source redshift planes between z_s=1-2.5, and ray-traced cosmic microwave
background lensing convergence maps. We describe the simulation procedures and
code validation in this paper. The data are publicly available at
this http URL

通过使用大量的 N 体模拟（名为 Cosmological Massive Neutrino Simulations），研究了大量结构演化对三个活动中微子种类的质量总和有抑制作用的效应，并允许三个宇宙学参数变化，公开了数据产品。