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* Definition of Lorene class Bin_bhns
*
*/
/*
* Copyright (c) 2005-2007 Keisuke Taniguchi
*
* This file is part of LORENE.
*
* LORENE is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* LORENE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LORENE; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __BIN_BHNS_H_
#define __BIN_BHNS_H_
/*
* $Id: bin_bhns.h,v 1.3 2014/10/13 08:52:32 j_novak Exp $
* $Log: bin_bhns.h,v $
* Revision 1.3 2014/10/13 08:52:32 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.2 2008/05/15 18:50:06 k_taniguchi
* Addition of new global quantities.
*
* Revision 1.1 2007/06/22 01:03:50 k_taniguchi
* *** empty log message ***
*
*
* $Header: /cvsroot/Lorene/C++/Include/bin_bhns.h,v 1.3 2014/10/13 08:52:32 j_novak Exp $
*
*/
// Lorene headers
#include "hole_bhns.h"
#include "star_bhns.h"
namespace Lorene {
// External classes which appear in the declaration of class Bin_bhns:
class Hole_bhns ;
class Star_bhns ;
/**
* Class for computing a black hole - neutron star binary system
* with comparable mass
* \ingroup(star)
*
*/
class Bin_bhns {
// Data :
// -----
protected:
/// Cartesian triad of the absolute reference frame
const Base_vect_cart ref_triad ;
/// Black hole
Hole_bhns hole ;
/// Neutron star
Star_bhns star ;
/** Angular velocity with respect to an asymptotically inertial
* observer
*/
double omega ;
/// Absolute orbital separation between two centers of BH and NS
double separ ;
/// Absolute X coordinate of the rotation axis
double x_rot ;
/// Absolute Y coordinate of the rotation axis
double y_rot ;
// Derived data :
// ------------
protected:
/** Total ADM mass of the system calculated by the surface integral
* at infinity
*/
mutable double* p_mass_adm_bhns_surf ;
/** Total ADM mass of the system calculated by the volume integral
* and the surface integral at the apparent horizon
*/
mutable double* p_mass_adm_bhns_vol ;
/** Total Komar mass of the system calculated by the surface integral
* at infinity
*/
mutable double* p_mass_kom_bhns_surf ;
/** Total Komar mass of the system calculated by the volume integral
* and the surface integral at the apparent horizon
*/
mutable double* p_mass_kom_bhns_vol ;
/// Total linear momentum of the system
mutable Tbl* p_line_mom_bhns ;
/// Total angular momentum of the system
mutable Tbl* p_angu_mom_bhns ;
/** Virial theorem error calculated by the ADM mass and the Komar
* mass of the surface integral at infinity
*/
mutable double* p_virial_bhns_surf ;
/** Virial theorem error calculated by the ADM mass and the Komar
* mass of the volume integral
*/
mutable double* p_virial_bhns_vol ;
/// Absolute coordinate X of the barycenter of the baryon density
mutable double* p_xa_barycenter ;
/// Absolute coordinate Y of the barycenter of the baryon density
mutable double* p_ya_barycenter ;
/// Orbital angular velocity derived from another method
mutable double* p_omega_two_points ;
/// Relative error on the Hamiltonian constraint
// mutable double* p_ham_constr_bhns ;
/// Relative error on the momentum constraint
// mutable Tbl* p_mom_constr_bhns ;
// Constructors - Destructor
// -------------------------
public:
/** Standard constructor
*
* @param mp_bh Mapping on which the black hole will be defined
* @param mp_ns Mapping on which the neutron star will be defined
* @param nzet Number of domains occupied by the neutron star
* @param eos Equation of state of the neutron star
* @param irrot_ns should be {\tt true} if NS is irrotational,
* {\tt false} if NS is corotating
* @param kerrschild should be {\tt true} if the background metric
* is Kerr-Schild, {\tt false} if the background
* metric is conformally flat
* @param bc_lapse_nd should be {\tt true} if the BC type for lapse
* is Neumann, {\tt false} if the BC type is Dirichlet
* @param bc_lapse_fs should be {\tt true} if the BC is first type
* {\tt false} if the BC is second one
* @param irrot_bh should be {\tt true} if BH is irrotational,
* {\tt false} if NS is corotating
* @param mass_bh Black hole mass which appears in the background
* metric
*/
Bin_bhns(Map& mp_bh, Map& mp_ns, int nzet, const Eos& eos,
bool irrot_ns, bool kerrschild,
bool bc_lapse_nd, bool bc_lapse_fs, bool irrot_bh,
double mass_bh) ;
Bin_bhns(const Bin_bhns& ) ; ///< Copy constructor
/// Constructor from a file (see \c sauve(FILE*) )
Bin_bhns(Map& mp_bh, Map& mp_ns, const Eos& eos, FILE* fich) ;
virtual ~Bin_bhns() ; ///< Destructor
// Memory management
// -----------------
protected:
/// Deletes all the derived quantities
void del_deriv() const ;
/// Sets to \c 0x0 all the pointers on derived quantities
void set_der_0x0() const ;
// Mutators / assignment
// ---------------------
public:
/// Assignment to another Bin_bhns
void operator=(const Bin_bhns&) ;
/// Read/write of the black hole
Hole_bhns& set_bh()
{ del_deriv() ;
return hole ; } ;
/// Read/write of the neutron star
Star_bhns& set_ns()
{ del_deriv() ;
return star ; } ;
/// Sets the orbital angular velocity [{\tt f\_unit}]
double& set_omega() { return omega ; } ;
/// Sets the orbital separation [{\tt r\_unit}]
double& set_separ() { return separ ; } ;
/// Sets the absolute coordinate X of the rotation axis [{\tt r\_unit}]
double& set_x_rot() {return x_rot; } ;
/// Sets the absolute coordinate Y of the rotation axis [{\tt r\_unit}]
double& set_y_rot() {return y_rot; } ;
// Accessors
// ---------
public:
/// Returns a reference to the black hole
const Hole_bhns& get_bh() const { return hole ; } ;
/// Returns a reference to the neutron star
const Star_bhns& get_ns() const { return star ; } ;
/// Returns the orbital angular velocity [{\tt f\_unit}]
double get_omega() const { return omega ; } ;
/** Returns the coordinate separation of the binary system
* [{\tt r\_unit}]
*/
double get_separ() const { return separ ; } ;
/** Returns the absolute coordinate X of the rotation axis
* [{\tt r\_unit}]
*/
double get_x_rot() const {return x_rot; } ;
/** Returns the absolute coordinate Y of the rotation axis
* [{\tt r\_unit}]
*/
double get_y_rot() const {return y_rot; } ;
// Outputs
// -------
public:
virtual void sauve(FILE *) const ; ///< Save in a file
/// Display
friend ostream& operator<<(ostream& , const Bin_bhns& ) ;
/// Display in polytropic units
void display_poly(ostream& ) const ;
private:
/// Operator >> (function called by the operator <<)
ostream& operator>>(ostream& ) const ;
// Computational routines
// ----------------------
public:
/// Total ADM mass
double mass_adm_bhns_surf() const ;
double mass_adm_bhns_vol() const ;
/// Total Komar mass
double mass_kom_bhns_surf() const ;
double mass_kom_bhns_vol() const ;
/** Total linear momentum.
*
* @return 1-D {\tt Tbl} of size 3, according to \\
* {\tt line\_mom()(0)} = $P^x$, \\
* {\tt line\_mom()(1)} = $P^y$, \\
* {\tt line\_mom()(2)} = $P^z$.
*/
const Tbl& line_mom_bhns() const ;
/** Total angular momentum.
*
* @return 1-D {\tt Tbl} of size 3, according to \\
* {\tt angu\_mom()(0)} = $J^x$, \\
* {\tt angu\_mom()(1)} = $J^y$, \\
* {\tt angu\_mom()(2)} = $J^z$.
*/
const Tbl& angu_mom_bhns() const ;
/** Estimates the relative error on the virial theorem
* $|1 - M_{\rm Komar} / M_{\rm ADM}|$
*/
double virial_bhns_surf() const ;
/** Estimates the relative error on the virial theorem
* $|1 - M_{\rm Komar} / M_{\rm ADM}|$
*/
double virial_bhns_vol() const ;
/// Absolute coordinate X of the barycenter of the baryon density
double xa_barycenter() const ;
/// Absolute coordinate Y of the barycenter of the baryon density
double ya_barycenter() const ;
/// Orbital angular velocity derived from another method
double omega_two_points() const ;
/** Estimates the relative error on the Hamiltonian constraint
*/
// double ham_constr() const ;
/** Estimates the relative error on the momentum constraint
*/
// const Tbl& mom_constr() const ;
/** Computes the orbital angular velocity {\tt omega}
*
* @para fact_omeg_min [input] : determines the lower bound of the
* interval {\tt [omega\_min, omega\_max]} in which
* {\tt omega} is searched by
* {\tt omega\_min = fact\_omeg\_min * omega},
* where {\tt omega} is the previous value of the
* angular velocity
* (typical value : {\tt fact\_omeg\_min = 0.5})
*
* @param fact_omeg_max [input] : determines the higher bound of the
* interval {\tt [omega\_min, omega\_max]} in which
* {\tt omega} is searched by
* {\tt omega\_max = fact\_omeg\_max * omega},
* where {\tt omega} is the previous value of the
* angular velocity.
* (typical value : {\tt fact\_omeg\_max = 1.5})
*/
void orbit_omega(double fact_omeg_min, double fact_omeg_max) ;
/** Computes the position of the rotation axis X
*
* @param rot_exp_x [input] : exponent of the factor which modifies
* the position of the two stars from the rotation axis
*
*/
void rotation_axis_x(double rot_exp_x) ;
/** Computes the position of the rotation axis Y
*
* @param thres_rot [input] : threshold to stop moving to the Y dir.
* @param rot_exp_y [input] : exponent of the factor which modifies
* the Y position of the neutron star coordinate
* @param fact [input] : factor to multiply to Y_NS
*
*/
void rotation_axis_y(double thres_rot, double rot_exp_y, double fact) ;
/** Sets some analytical template for the initial shift vector
*
* @param reduce_shift_bh [input] : factor to reduce the initial
* ansatz
* @param reduce_shift_ns [input] : factor to reduce the initial
* ansatz
*
*/
void shift_analytic(double reduce_shift_bh, double reduce_shift_ns) ;
};
ostream& operator<<(ostream& , const Bin_bhns& ) ;
}
#endif
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