FRWModel Class Reference

FRW cosmological model for calculating scale factor (redshift) More...

#include <galpy_interface.h>

Public Member Functions
double	getMatterDensity (const double _a) const
double	getRadiationDensity (const double _a) const
double	getEnergyDensity (const double _a) const
double	getCurvatureDensity () const
double	getDensity (const double _a) const
void	calcH0Myr ()
double	calcAdot (const double _a) const
	calculate da/dt More...
void	updateA (const double _dt)
	update scale factor by time step _dt (first order Euler method) More...
void	updateAwithDtmin (const double _dt)
	update scale factor with maximum time step dt_max (first order Euler method) More...
double	getH () const
	get Hubble constant at current a More...

Public Attributes
double	time
double	dt_max
double	a
double	H0
double	H0_myr
double	omega_energy
double	omega_radiation
double	omega_matter
double	dt_scale

Detailed Description

FRW cosmological model for calculating scale factor (redshift)

Member Function Documentation

calcAdot()

double FRWModel::calcAdot ( const double  _a ) const

inline

calculate da/dt

Parameters

[in]

_a

scale factor

Returns

da/dt

Here is the call graph for this function:

Here is the caller graph for this function:

calcH0Myr()

void FRWModel::calcH0Myr ( )

inline

Here is the caller graph for this function:

getCurvatureDensity()

double FRWModel::getCurvatureDensity ( ) const

inline

Here is the caller graph for this function:

getDensity()

double FRWModel::getDensity ( const double  _a ) const

inline

Here is the call graph for this function:

Here is the caller graph for this function:

getEnergyDensity()

double FRWModel::getEnergyDensity ( const double  _a ) const

inline

Here is the caller graph for this function:

getH()

double FRWModel::getH ( ) const

inline

get Hubble constant at current a

Here is the call graph for this function:

Here is the caller graph for this function:

getMatterDensity()

double FRWModel::getMatterDensity ( const double  _a ) const

inline

Here is the caller graph for this function:

getRadiationDensity()

double FRWModel::getRadiationDensity ( const double  _a ) const

inline

Here is the caller graph for this function:

updateA()

void FRWModel::updateA ( const double  _dt )

inline

update scale factor by time step _dt (first order Euler method)

Iterate 10 times to get high accuracy for small a

Parameters

[in]

_dt

time step

Here is the call graph for this function:

Here is the caller graph for this function:

updateAwithDtmin()

void FRWModel::updateAwithDtmin ( const double  _dt )

inline

update scale factor with maximum time step dt_max (first order Euler method)

Iterate 10 times to get high accuracy for small a

Parameters

[in]

_dt

time step

Here is the call graph for this function:

Here is the caller graph for this function:

Member Data Documentation

a

double FRWModel::a

dt_max

double FRWModel::dt_max

dt_scale

double FRWModel::dt_scale

H0

double FRWModel::H0

H0_myr

double FRWModel::H0_myr

omega_energy

double FRWModel::omega_energy

omega_matter

double FRWModel::omega_matter

omega_radiation

double FRWModel::omega_radiation

time

double FRWModel::time

---

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

• galpy_interface.h