pyccl.halos.hbias.sheth99 module

class pyccl.halos.hbias.sheth99.HaloBiasSheth99(self, *, mass_def='fof', mass_def_strict=True, use_delta_c_fit=False)[source]

Bases: HaloBias

Implements halo bias as described in Sheth & Tormen 1999. This parametrization is only valid for ‘fof’ masses.

Parameters:

  • mass_def (MassDef or str) – a mass definition object, or a name string.

  • mass_def_strict (bool) – if False, consistency of the mass definition will be ignored.

  • use_delta_c_fit (bool) – if True, use the fit to the critical overdensity \(\delta_c\) by Nakamura & Suto 1997. Otherwise use \(\delta_c = 1.68647\).

name = 'Sheth99'