Bin_bhns_extr Class Reference
[Stars and black holes]

Class for computing a Black hole - Neutron star binary system with an extreme mass ratio. More...

#include <bin_bhns_extr.h>

Public Member Functions
	Bin_bhns_extr (Map &mp, int nzet, const Eos &eos, bool irrot, bool relat, bool kerrs, bool multi)
	Standard constructor.
	Bin_bhns_extr (const Bin_bhns_extr &)
	Copy constructor.
	Bin_bhns_extr (Map &mp, const Eos &eos, FILE *fich)
	Constructor from a file (see `sauve(FILE*)` ).
	~Bin_bhns_extr ()
	Destructor.
void	operator= (const Bin_bhns_extr &)
	Assignment to another Bin_bhns_extr.
Et_bin_bhns_extr &	set_ns ()
	Read/write of the neutron star.
double &	set_omega ()
	Sets the orbital angular velocity [{ f}].
double &	set_separ ()
	Sets the orbital separation [{ r}].
double &	set_mass_bh ()
	Sets the gravitational mass of BH [{ m}].
const Et_bin_bhns_extr &	get_ns () const
	Returns a reference to the neutron star.
double	get_omega () const
	Returns the orbital angular velocity [{ f}].
double	get_separ () const
	Returns the coordinate separation of the binary system [{ r}].
double	get_mass_bh () const
	Returns the gravitational mass of BH [{ m}].
void	sauve (FILE *) const
	Save in a file.
void	display_poly (ostream &) const
	Display in polytropic units.
double	xa_barycenter_extr () const
	Absolute coordinate X of the barycenter of the baryon density in the Kerr-Schild background metric or in the conformally flat one.
double	ya_barycenter_extr () const
	in the Kerr-Schild background metric
double	mass_b_extr () const
	Baryon mass of the neutron star in the Kerr-Schild background metric or in the conformally flat.
void	orbit_omega_ks (double fact_omeg_min, double fact_omeg_max)
	Computes the orbital angular velocity { omega} in the Kerr-Schild background metric.
void	orbit_omega_cf (double fact_omeg_min, double fact_omeg_max)
	Computes the orbital angular velocity { omega} in the conformally flat background metric.
void	analytical_omega ()
	Sets the orbital angular velocity to some 2-PN analytical value (Keplerian value in the Newtonian case).
void	analytical_shift ()
	Sets some analytical template for the shift vector (via the members { w} and { khi} of { Etoile}).
Private Member Functions
void	del_deriv () const
	Deletes all the derived quantities.
void	set_der_0x0 () const
	Sets to `0x0` all the pointers on derived quantities.
ostream &	operator>> (ostream &) const
	Operator >> (function called by the operator <<).
Private Attributes
const Base_vect_cart	ref_triad
	Cartesian triad of the absolute reference frame.
Et_bin_bhns_extr	star
	Neutron star.
double	omega
	Angular velocity with respect to an asymptotically inertial observer.
double	separ
	Absolute orbital separation between two centers of BH and NS.
double	mass_bh
	Gravitational mass of BH.
double *	p_xa_barycenter_extr
	Absolute coordinate X of the barycenter of the baryon density in the Kerr-Schild background metric or in the conformally flat one.
double *	p_ya_barycenter_extr
	Absolute coordinate Y of the barycenter of the baryon density in the Kerr-Schild background metric.
double *	p_mass_b_extr
	Baryon mass of the neutron star in the Kerr-Schild background metric or in the conformally flat one.
Friends
ostream &	operator<< (ostream &, const Bin_bhns_extr &)
	Display.

Detailed Description

Class for computing a Black hole - Neutron star binary system with an extreme mass ratio.

()

Definition at line 53 of file bin_bhns_extr.h.

Constructor & Destructor Documentation

Bin_bhns_extr::Bin_bhns_extr	(	Map &	mp,
		int	nzet,
		const Eos &	eos,
		bool	irrot,
		bool	relat,
		bool	kerrs,
		bool	multi
	)

Standard constructor.

Parameters:

	mp	Mapping on which the neutron star will be defined
	nzet	Number of domains occupied by the neutron star
	eos	Equation of state of the neutron star
	irrot	should be { true} if NS is irrotational, { false} if NS is corotating
	relat	should be { true} for a relativistic configuration, { false} for a Newtonian one
	kerrs	should be { true} for the Kerr-Schild background metric, { false} for the conformally flat one
	multi	should be { true} for the multipole falloff boundary condition, { true} for the one

Definition at line 81 of file bin_bhns_extr.C.

References mass_bh, omega, separ, and set_der_0x0().

Bin_bhns_extr::Bin_bhns_extr ( const Bin_bhns_extr & bibi )

Copy constructor.

Definition at line 98 of file bin_bhns_extr.C.

References set_der_0x0().

Bin_bhns_extr::Bin_bhns_extr	(	Map &	mp,
		const Eos &	eos,
		FILE *	fich
	)

Constructor from a file (see sauve(FILE*) ).

Parameters:

	mp	Mapping on which the neutron star will be defined
	eos	Equation of state of the neutron star

Definition at line 113 of file bin_bhns_extr.C.

References fread_be(), mass_bh, omega, separ, and set_der_0x0().

Bin_bhns_extr::~Bin_bhns_extr ( )

Destructor.

Definition at line 132 of file bin_bhns_extr.C.

References del_deriv().

Member Function Documentation

void Bin_bhns_extr::analytical_omega ( )

Sets the orbital angular velocity to some 2-PN analytical value (Keplerian value in the Newtonian case).

Definition at line 51 of file bin_bhns_extr_omegaana.C.

References del_deriv(), Etoile_bin::is_irrotational(), Etoile::is_relativistic(), mass_bh, omega, pow(), Etoile::ray_eq(), separ, sqrt(), and star.

void Bin_bhns_extr::analytical_shift ( )

Sets some analytical template for the shift vector (via the members { w} and { khi} of { Etoile}).

Definition at line 51 of file bin_bhns_extr_anashift.C.

References Cmp::annule(), Map::get_mg(), Etoile::get_mp(), Etoile::get_nzet(), Mg3d::get_nzone(), Etoile::is_relativistic(), Etoile_bin::mass_g(), omega, Map::r, Etoile::ray_eq(), separ, Tenseur::set(), Tenseur::set_etat_qcq(), Etoile_bin::set_khi_shift(), Tenseur::set_std_base(), Etoile_bin::set_w_shift(), Map::sinp, Map::sint, star, and Map::y.

void Bin_bhns_extr::del_deriv ( ) const [private]

Deletes all the derived quantities.

Definition at line 141 of file bin_bhns_extr.C.

References p_mass_b_extr, p_xa_barycenter_extr, p_ya_barycenter_extr, and set_der_0x0().

void Bin_bhns_extr::display_poly ( ostream & ost ) const

Display in polytropic units.

Definition at line 319 of file bin_bhns_extr.C.

References Etoile::get_eos(), Eos_poly::get_gam(), Eos_poly::get_kap(), Etoile_bin::mass_b(), mass_b_extr(), mass_bh, omega, pow(), Etoile::ray_eq(), Etoile::ray_eq_pi(), separ, sqrt(), star, xa_barycenter_extr(), and ya_barycenter_extr().

double Bin_bhns_extr::get_mass_bh ( ) const [inline]

Returns the gravitational mass of BH [{ m}].

Definition at line 174 of file bin_bhns_extr.h.

References mass_bh.

const Et_bin_bhns_extr& Bin_bhns_extr::get_ns ( ) const [inline]

Returns a reference to the neutron star.

Definition at line 162 of file bin_bhns_extr.h.

References star.

double Bin_bhns_extr::get_omega ( ) const [inline]

Returns the orbital angular velocity [{ f}].

Definition at line 166 of file bin_bhns_extr.h.

References omega.

double Bin_bhns_extr::get_separ ( ) const [inline]

Returns the coordinate separation of the binary system [{ r}].

Definition at line 171 of file bin_bhns_extr.h.

References separ.

double Bin_bhns_extr::mass_b_extr ( ) const

Baryon mass of the neutron star in the Kerr-Schild background metric or in the conformally flat.

Definition at line 214 of file bin_bhns_extr_global.C.

References Etoile::get_a_car(), Etoile::get_gam_euler(), Etoile::get_mp(), Etoile::get_nbar(), Et_bin_bhns_extr::in_kerrschild(), Cmp::integrale(), Etoile::is_relativistic(), mass_bh, p_mass_b_extr, pow(), separ, Tenseur::set(), Tenseur::set_etat_qcq(), Tenseur::set_std_base(), sqrt(), star, Cmp::std_base_scal(), Map::x, Map::y, and Map::z.

void Bin_bhns_extr::operator= ( const Bin_bhns_extr & bibi )

Assignment to another Bin_bhns_extr.

Definition at line 165 of file bin_bhns_extr.C.

References del_deriv(), mass_bh, omega, ref_triad, separ, and star.

ostream & Bin_bhns_extr::operator>> ( ostream & ost ) const [private]

Operator >> (function called by the operator <<).

Definition at line 206 of file bin_bhns_extr.C.

References Etoile::get_a_car(), Etoile::get_ener(), Etoile::get_ent(), Etoile::get_eos(), Etoile::get_mp(), Etoile::get_nbar(), Etoile::get_nnn(), Etoile::get_nzet(), Map::get_ori_x(), Etoile::get_press(), Map::get_rot_phi(), Et_bin_bhns_extr::in_kerrschild(), Etoile_bin::is_irrotational(), Etoile::is_relativistic(), Etoile_bin::mass_b(), mass_b_extr(), mass_bh, Etoile_bin::mass_g(), omega, Etoile::ray_eq(), Etoile::ray_eq_pi(), separ, star, and Et_bin_bhns_extr::with_multipole().

void Bin_bhns_extr::orbit_omega_cf	(	double	fact_omeg_min,
		double	fact_omeg_max
	)

Computes the orbital angular velocity { omega} in the conformally flat background metric.

Parameters:

	fact_omeg_min	[input] : determines the lower bound of the interval { [omega, omega]} in which { omega} is searched by { omega = fact * omega}, where { omega} is the previous value of the angular velocity (typical value : { fact = 0.5})
	fact_omeg_max	[input] : determines the higher bound of the interval { [omega, omega]} in which { omega} is searched by { omega = fact * omega}, where { omega} is the previous value of the angular velocity. (typical value : { fact = 1.5})

Definition at line 314 of file bin_bhns_extr_orbit.C.

References Param::add_double(), Param::add_int(), Tenseur::change_triad(), Cmp::dsdx(), flat_scalar_prod(), Etoile::get_a_car(), Map::get_bvect_cart(), Etoile::get_d_logn_auto_div(), Etoile_bin::get_loggam(), Etoile::get_logn_auto_regu(), Etoile_bin::get_logn_comp(), Etoile::get_mp(), Etoile::get_nnn(), Map::get_rot_phi(), Etoile::get_shift(), Tbl::get_taille(), Tenseur::get_triad(), Etoile::is_relativistic(), omega, ref_triad, star, zero_list(), and zerosec_b().

void Bin_bhns_extr::orbit_omega_ks	(	double	fact_omeg_min,
		double	fact_omeg_max
	)

Computes the orbital angular velocity { omega} in the Kerr-Schild background metric.

Parameters:

	fact_omeg_min	[input] : determines the lower bound of the interval { [omega, omega]} in which { omega} is searched by { omega = fact * omega}, where { omega} is the previous value of the angular velocity (typical value : { fact = 0.5})
	fact_omeg_max	[input] : determines the higher bound of the interval { [omega, omega]} in which { omega} is searched by { omega = fact * omega}, where { omega} is the previous value of the angular velocity. (typical value : { fact = 1.5})

Definition at line 63 of file bin_bhns_extr_orbit.C.

References Param::add_double(), Param::add_int(), Tenseur::change_triad(), Cmp::dsdx(), flat_scalar_prod(), Etoile::get_a_car(), Map::get_bvect_cart(), Etoile::get_d_logn_auto_div(), Etoile_bin::get_d_logn_comp(), Etoile_bin::get_loggam(), Etoile::get_logn_auto_regu(), Etoile::get_mp(), Etoile::get_nnn(), Map::get_rot_phi(), Etoile::get_shift(), Tbl::get_taille(), Tenseur::get_triad(), Etoile::is_relativistic(), mass_bh, omega, ref_triad, separ, star, zero_list(), and zerosec_b().