Class

NumCosmoTransferFunc

Description [src]

abstract class NumCosmo.TransferFunc : GObject.Object
{
  /* No available fields */
}

Abstrac class for perturbation transfer function.

This module comprises the set of functions to compute the transfer function and derived quantities. The applied $k$ unit is $[\mathrm{Mpc}^{-1}]$.

The transfer function, $T(k)$, is defined as, \begin{equation} T(k) \equiv \frac{\hat{\delta}(k, z=0)}{\hat{\delta}(k, z=\infty)} \frac{\hat{\delta}(k=0, z=\infty)}{\hat{\delta}(k=0, z=0)} \, , \end{equation} where $\hat{\delta}(k, z)$ is the density perturbation, in Fourier space, for mode (wavenumber) $k$ at redshift $z$. By definition, we have $$ \lim_{k \rightarrow 0} T(k) \rightarrow 1 \, .$$

See [Eisenstein and Hu (1998)][XEisenstein1998] [arXiv] for more details.

Ancestors

GObject

Descendants

Functions

nc_transfer_func_clear

Atomically decrements the reference count of tf by one. If the reference count drops to 0, all memory allocated by tf is released. Set the pointer to NULL.

Instance methods

nc_transfer_func_eval

The transfer function tf value at mode (wavenumber) kh (in $Mpc^{-1}$ units) with model cosmo.

nc_transfer_func_free

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

nc_transfer_func_prepare

Prepares the transfer function tf with model cosmo, such that one can evaluate it (#nc_transfer_func_eval).

nc_transfer_func_prepare_if_needed

Prepares (if necessary) the transfer function tf with model cosmo.

nc_transfer_func_ref

Increases the reference count of tf atomically.

Methods inherited from GObject (43)

Please see GObject for a full list of methods.

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 NumCosmoTransferFuncClass {
  gpointer (* alloc) (
void
  );
  void (* prepare) (
    NcTransferFunc* tf,
    NcHICosmo* cosmo
  );
  gdouble (* calc) (
    NcTransferFunc* tf,
    gdouble k
  );
  
}

No description available.

Class members

alloc: gpointer (* alloc) ( void ): No description available.
prepare: void (* prepare) ( NcTransferFunc* tf, NcHICosmo* cosmo ): No description available.
calc: gdouble (* calc) ( NcTransferFunc* tf, gdouble k ): No description available.

Virtual methods

NumCosmo.TransferFuncClass.calc

No description available.

NumCosmo.TransferFuncClass.prepare

Prepares the transfer function tf with model cosmo, such that one can evaluate it (#nc_transfer_func_eval).