MWPotentialEvolve Class Reference

data for MWPotential evolve More...

#include <galpy_interface.h>

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Public Member Functions
void	initialFromFile (const std::string &_filename, const double &_time)
	initial potential parameter from a file More...
void	readDataFromFile (const std::string &_filename, const double &_time)
	read potential parameter from a file More...
void	writeDataToFile (const std::string &_filename)
	write data for restart More...
void	calcMWPotentialParameters (const double &_time)
	calculate MW potential based on the input time More...

Public Attributes
FRWModel	frw
struct {
double   m_vir_halo
double   c_halo
double   ac_halo
double   m_disk
double   ra_disk
double   rb_disk
double   rho_bulge
double   alpha_bulge
double   rcut_bulge
}	init
struct {
double   m_vir_halo
double   r_vir_halo
double   rho_c_halo
double   gm_halo
double   rs_halo
double   gm_disk
double   ra_disk
double   rb_disk
double   grho_bulge
double   alpha_bulge
double   rcut_bulge
}	now

Detailed Description

data for MWPotential evolve

The evolving Milkyway potential referring to MWPotential2014 in Galpy Reference: Gomez F. A., Helmi A., Brown A. G. A., Li Y. S., 2010, MNRAS, 408, 935. doi:10.1111/j.1365-2966.2010.17225.x, https://ui.adsabs.harvard.edu/abs/2010MNRAS.408..935G

Member Function Documentation

calcMWPotentialParameters()

void MWPotentialEvolve::calcMWPotentialParameters ( const double &  _time )

inline

calculate MW potential based on the input time

Parameters

[in]

_time

physical time [Myr]

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initialFromFile()

void MWPotentialEvolve::initialFromFile ( const std::string &  _filename, const double &  _time  )

inline

initial potential parameter from a file

Parameters in configure file: Time [value(Myr)] a [value] H0 [value(km/s/Mpc)] Omega [energy radiation matter] dt_scale [value] dt_max [value(Myr)] Halo [m_vir(Msun) c ac]
Disk [M(Msun) ra(pc) rb(pc)] Bulge [rho(Msun/pc^(3-alpha)) alpha rcut(pc)] a (scale factor), H0 (Hubble constant) and Omega are used to obtain a at a given time by integrating adot(t) Omega are three normazied densities in FRW cosmological model dt_scale: scale of time to integrate a, if -1, evolve backwards, if 1, evolve forwards dt_max: maximum time step for integrating adot NFW Halo (3): virial mass, concentration, formation epoch of halo (Wechsler 2002, Zhao 2003) Miyamoto Nagai disk (3): mass, a, b Power Spherical bulge with expotential cutoff (3): rho0, power law index, cutoff radius

Parameters

[in]	_filename	the file contain parameters
[in]	_time	current physical time [Myr]

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readDataFromFile()

void MWPotentialEvolve::readDataFromFile ( const std::string &  _filename, const double &  _time  )

inline

read potential parameter from a file

Parameters

[in]	_filename	the file contain parameters (no label): FRWModel: Time[Myr], a, H0[km/s/Mpc], Omega_energy, Omega_radiation, Omega_matter, dt_scale NFWHalo: M_vir[Msun], c, ac Disk: M[Msun], Ra[pc], Rb[pc] Bulge: M[Msun], alpha, rcut[pc]
[in]	_time	current physical time [Myr]

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writeDataToFile()

void MWPotentialEvolve::writeDataToFile ( const std::string &  _filename )

inline

write data for restart

Parameters

[in]

_filename

file to save data

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Member Data Documentation

ac_halo

double MWPotentialEvolve::ac_halo

alpha_bulge

double MWPotentialEvolve::alpha_bulge

c_halo

double MWPotentialEvolve::c_halo

frw

FRWModel MWPotentialEvolve::frw

gm_disk

double MWPotentialEvolve::gm_disk

gm_halo

double MWPotentialEvolve::gm_halo

grho_bulge

double MWPotentialEvolve::grho_bulge

init

struct { ... } MWPotentialEvolve::init

m_disk

double MWPotentialEvolve::m_disk

m_vir_halo

double MWPotentialEvolve::m_vir_halo

now

struct { ... } MWPotentialEvolve::now

r_vir_halo

double MWPotentialEvolve::r_vir_halo

ra_disk

double MWPotentialEvolve::ra_disk

rb_disk

double MWPotentialEvolve::rb_disk

rcut_bulge

double MWPotentialEvolve::rcut_bulge

rho_bulge

double MWPotentialEvolve::rho_bulge

rho_c_halo

double MWPotentialEvolve::rho_c_halo

rs_halo

double MWPotentialEvolve::rs_halo

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

• galpy_interface.h