GADGET-4
Public Member Functions | Static Public Member Functions | List of all members
driftfac Class Reference

#include <driftfac.h>

Public Member Functions

void init_drift_table (void)
 
double get_drift_factor (integertime time0, integertime time1)
 
double get_gravkick_factor (integertime time0, integertime time1)
 
double get_hydrokick_factor (integertime time0, integertime time1)
 
double get_comoving_distance (integertime time0)
 
double get_comoving_distance_for_scalefactor (double ascale)
 
double get_scalefactor_for_comoving_distance (double dist)
 
integertime get_gravkick_factor_inverse (double fac)
 

Static Public Member Functions

static double hubble_function (double a)
 

Detailed Description

Definition at line 27 of file driftfac.h.

Member Function Documentation

◆ get_comoving_distance()

double get_comoving_distance ( integertime  time0)

Definition at line 191 of file driftfac.cc.

◆ get_comoving_distance_for_scalefactor()

double get_comoving_distance_for_scalefactor ( double  ascale)

Definition at line 199 of file driftfac.cc.

◆ get_drift_factor()

double get_drift_factor ( integertime  time0,
integertime  time1 
)

This function integrates the cosmological prefactor for a drift step between time0 and time1. The value returned is

\[ \int_{a_0}^{a_1} \frac{{\rm d}a}{a^3 * H(a)} \]

A lookup-table is used for reasons of speed.

Definition at line 68 of file driftfac.cc.

◆ get_gravkick_factor()

double get_gravkick_factor ( integertime  time0,
integertime  time1 
)

Definition at line 109 of file driftfac.cc.

◆ get_gravkick_factor_inverse()

integertime get_gravkick_factor_inverse ( double  fac)

Definition at line 220 of file driftfac.cc.

◆ get_hydrokick_factor()

double get_hydrokick_factor ( integertime  time0,
integertime  time1 
)

Definition at line 150 of file driftfac.cc.

◆ get_scalefactor_for_comoving_distance()

double get_scalefactor_for_comoving_distance ( double  dist)

Definition at line 209 of file driftfac.cc.

◆ hubble_function()

static double hubble_function ( double  a)
inlinestatic

Definition at line 39 of file driftfac.h.

◆ init_drift_table()

void init_drift_table ( void  )

Definition at line 26 of file driftfac.cc.

The documentation for this class was generated from the following files: