__all__ = ("ConcentrationKlypin11",)
from . import Concentration
[docs]class ConcentrationKlypin11(Concentration):
"""Concentration-mass relation by `Klypin et al. 2011
<https://arxiv.org/abs/1002.3660>`_. This parametrization is only
valid for S.O. masses with :math:`\\Delta = \\Delta_{\\rm vir}`.
Args:
mass_def (:class:`~pyccl.halos.massdef.MassDef` or :obj:`str`): a mass
definition object or a name string.
"""
name = 'Klypin11'
def __init__(self, *, mass_def="vir"):
super().__init__(mass_def=mass_def)
def _check_mass_def_strict(self, mass_def):
return mass_def.name != "vir"
def _concentration(self, cosmo, M, a):
M_pivot_inv = cosmo["h"] * 1E-12
return 9.6 * (M * M_pivot_inv)**(-0.075)