Class

NumCosmoHaloBiasTinker

Description [src]

class NumCosmo.HaloBiasTinker : NumCosmo.HaloBias
{
  /* No available fields */
}

Tinker halo bias function type.

Object implementation to compute the halo bias function given the Tinker mass function. A description of the mechanism is given below. Check nc_halo_bias.c for a description of halo biases and nc_multiplicity_func_tinker.c for the Tinker mass function.

The Tinker bias was obtained empirically and is given by \begin{align} b(\nu) &= 1 - A \frac{\nu^a}{\nu^a + \delta_c^a} + B \nu^b + C \nu^c , \end{align} where $b(\nu)$ is the Tinker bias, $\delta_c$ is the critical threshold, $\nu = \frac{\delta_c}{\sigma}$ and the free parameters $(A,a,B,b,C,c)$ depend on the value of the overdensity chosen.

The user must provide input the values: NcHaloMassFunction, delta_c, B, b and c delta_c - nc_halo_bias_ps_new_full().

Ancestors

Constructors

nc_halo_bias_tinker_new

Creates a new NcHaloBiasTinker object with undefined parameters.

nc_halo_bias_tinker_new_full

Creates a new NcHaloBiasTinker object with the input parameters.

Instance methods

nc_halo_bias_tinker_get_B
No description available.

nc_halo_bias_tinker_get_b
No description available.

nc_halo_bias_tinker_get_c
No description available.

nc_halo_bias_tinker_get_delta_c
No description available.

nc_halo_bias_tinker_set_B

Sets the value B to the NcHaloBiasTinker:B property.

nc_halo_bias_tinker_set_b

Sets the value b to the NcHaloBiasTinker:b property.

nc_halo_bias_tinker_set_c

Sets the value c to the NcHaloBiasTinker:c property.

nc_halo_bias_tinker_set_delta_c

Sets the value delta_c to the NcHaloBiasTinker:critical-delta property.

Methods inherited from NcHaloBias (3)
nc_halo_bias_eval

Computes the Halo Bias at a given redshift.

nc_halo_bias_free

Atomically decrements the reference count of bias by one. If the reference count drops to 0, all memory allocated by bias is released.

nc_halo_bias_integrand

This function is the integrand of the mean bias, i.e., the product of the mass function with the bias function. As both functions depend on the standard deviation of the matter density contrast, we implement this function to compute \f$ \sigma (M, z) \f$ just once.

Methods inherited from GObject (43)

Please see GObject for a full list of methods.

Properties

NumCosmo.HaloBiasTinker:B

Empirical parameters for Tinker bias function. (check limits values).

NumCosmo.HaloBiasTinker:b

Empirical parameters for Tinker bias function. (check limits values).

NumCosmo.HaloBiasTinker:c

Empirical parameters for Tinker bias function. (check limits values).

NumCosmo.HaloBiasTinker:critical-delta
No description available.

Properties inherited from NcHaloBias (1)
NumCosmo.HaloBias:mass-function

This property keeps the mass function object.

Signals

Signals inherited from GObject (1)
GObject::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

Class structure

struct NumCosmoHaloBiasTinkerClass {
  /* no available fields */
}

No description available.