__all__ = ("MassFuncJenkins01",)
import numpy as np
from . import MassFunc
[docs]class MassFuncJenkins01(MassFunc):
"""Implements the mass function of `Jenkins et al. 2001
<https://arxiv.org/abs/astro-ph/0005260>`_. This parametrization
is only valid for 'fof' masses.
Args:
mass_def (:class:`~pyccl.halos.massdef.MassDef` or :obj:`str`):
a mass definition object, or a name string.
mass_def_strict (:obj:`bool`): if ``False``, consistency of the mass
definition will be ignored.
"""
name = 'Jenkins01'
def __init__(self, *,
mass_def="fof",
mass_def_strict=True):
super().__init__(mass_def=mass_def, mass_def_strict=mass_def_strict)
def _check_mass_def_strict(self, mass_def):
return mass_def.Delta != "fof"
def _setup(self):
self.A = 0.315
self.b = 0.61
self.q = 3.8
def _get_fsigma(self, cosmo, sigM, a, lnM):
return self.A * np.exp(-np.abs(-np.log(sigM) + self.b)**self.q)