binary_xcts.C
/*
* Methods of class Binary_xcts
* (see file binary_xcts.h for documentation)
*/
/*
* Copyright (c) 2010 Michal Bejger
*
* 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
*
*/
char binary_xcts_C[] = "$Header: /cvsroot/Lorene/C++/Source/Binary_xcts/binary_xcts.C,v 1.6 2014/10/13 08:52:45 j_novak Exp $" ;
/*
* $Id: binary_xcts.C,v 1.6 2014/10/13 08:52:45 j_novak Exp $
* $Log: binary_xcts.C,v $
* Revision 1.6 2014/10/13 08:52:45 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.5 2014/10/06 15:12:59 j_novak
* Modified #include directives to use c++ syntax.
*
* Revision 1.4 2010/12/20 09:56:02 m_bejger
* Pointer to the linear momentum added
*
* Revision 1.3 2010/12/09 10:38:46 m_bejger
* virial_vol() added, fait_decouple() removed
*
* Revision 1.2 2010/10/28 12:00:07 m_bejger
* Mass-shedding indicators added to the output in Binary_xcts::write_global
*
* Revision 1.1 2010/05/04 07:35:54 m_bejger
* Initial version
*
* $Header: /cvsroot/Lorene/C++/Source/Binary_xcts/binary_xcts.C,v 1.6 2014/10/13 08:52:45 j_novak Exp $
*
*/
// Headers C
#include <cmath>
// Headers Lorene
#include "binary_xcts.h"
#include "eos.h"
#include "utilitaires.h"
#include "graphique.h"
#include "param.h"
#include "unites.h"
//--------------//
// Constructors //
//--------------//
// Standard constructor
// --------------------
namespace Lorene {
Binary_xcts::Binary_xcts(Map& mp1,
int nzet1,
const Eos& eos1,
int irrot1,
Map& mp2,
int nzet2,
const Eos& eos2,
int irrot2)
: star1(mp1, nzet1, eos1, irrot1),
star2(mp2, nzet2, eos2, irrot2)
{
et[0] = &star1 ;
et[1] = &star2 ;
omega = 0 ;
x_axe = 0 ;
// Pointers of derived quantities initialized to zero :
set_der_0x0() ;
}
// Copy constructor
// ----------------
Binary_xcts::Binary_xcts(const Binary_xcts& bibi)
: star1(bibi.star1),
star2(bibi.star2),
omega(bibi.omega),
x_axe(bibi.x_axe)
{
et[0] = &star1 ;
et[1] = &star2 ;
// Pointers of derived quantities initialized to zero :
set_der_0x0() ;
}
// Constructor from a file
// -----------------------
Binary_xcts::Binary_xcts(Map& mp1,
const Eos& eos1,
Map& mp2,
const Eos& eos2,
FILE* fich)
: star1(mp1, eos1, fich),
star2(mp2, eos2, fich)
{
et[0] = &star1 ;
et[1] = &star2 ;
// omega and x_axe are read in the file:
fread_be(&omega, sizeof(double), 1, fich) ;
fread_be(&x_axe, sizeof(double), 1, fich) ;
// Pointers of derived quantities initialized to zero :
set_der_0x0() ;
}
//------------//
// Destructor //
//------- -----//
Binary_xcts::~Binary_xcts(){
del_deriv() ;
}
//----------------------------------//
// Management of derived quantities //
//----------------------------------//
void Binary_xcts::del_deriv() const {
if (p_mass_adm != 0x0) delete p_mass_adm ;
if (p_mass_kom != 0x0) delete p_mass_kom ;
if (p_angu_mom != 0x0) delete p_angu_mom ;
if (p_lin_mom != 0x0) delete p_lin_mom ;
if (p_total_ener != 0x0) delete p_total_ener ;
if (p_virial != 0x0) delete p_virial ;
if (p_virial_vol != 0x0) delete p_virial_vol ;
set_der_0x0() ;
}
void Binary_xcts::set_der_0x0() const {
p_mass_adm = 0x0 ;
p_mass_kom = 0x0 ;
p_angu_mom = 0x0 ;
p_lin_mom = 0x0 ;
p_total_ener = 0x0 ;
p_virial = 0x0 ;
p_virial_vol = 0x0 ;
}
//--------------//
// Assignment //
//--------------//
// Assignment to another Binary_xcts
// --------------------------------
void Binary_xcts::operator=(const Binary_xcts& bibi) {
star1 = bibi.star1 ;
star2 = bibi.star2 ;
omega = bibi.omega ;
x_axe = bibi.x_axe ;
del_deriv() ; // Deletes all derived quantities
}
//--------------//
// Outputs //
//--------------//
// Save in a file
// --------------
void Binary_xcts::sauve(FILE* fich) const {
star1.sauve(fich) ;
star2.sauve(fich) ;
fwrite_be(&omega, sizeof(double), 1, fich) ;
fwrite_be(&x_axe, sizeof(double), 1, fich) ;
}
// Printing
// --------
ostream& operator<<(ostream& ost, const Binary_xcts& bibi) {
bibi >> ost ;
return ost ;
}
ostream& Binary_xcts::operator>>(ostream& ost) const {
using namespace Unites ;
ost << endl ;
ost << "Binary neutron stars" << endl ;
ost << "=============" << endl ;
ost << endl <<
"Orbital angular velocity : " << omega * f_unit << " rad/s" << endl ;
ost << endl <<
"Coordinate separation between the two stellar centers : "
<< separation() / km << " km" << endl ;
ost <<
"Absolute coordinate X of the rotation axis : " << x_axe / km
<< " km" << endl ;
ost << endl << "Star 1 : " << endl ;
ost << "====== " << endl ;
ost << star1 << endl ;
ost << "Star 2 : " << endl ;
ost << "====== " << endl ;
ost << star2 << endl ;
return ost ;
}
// Display in polytropic units
// ---------------------------
void Binary_xcts::display_poly(ostream& ost) const {
using namespace Unites ;
const Eos* p_eos1 = &( star1.get_eos() ) ;
const Eos_poly* p_eos_poly = dynamic_cast<const Eos_poly*>( p_eos1 ) ;
if (p_eos_poly != 0x0) {
assert( star1.get_eos() == star2.get_eos() ) ;
double kappa = p_eos_poly->get_kap() ;
double gamma = p_eos_poly->get_gam() ; ;
double kap_ns2 = pow( kappa, 0.5 /(gamma-1) ) ;
// Polytropic unit of length in terms of r_unit :
double r_poly = kap_ns2 / sqrt(ggrav) ;
// Polytropic unit of time in terms of t_unit :
double t_poly = r_poly ;
// Polytropic unit of mass in terms of m_unit :
double m_poly = r_poly / ggrav ;
// Polytropic unit of angular momentum in terms of j_unit :
double j_poly = r_poly * r_poly / ggrav ;
ost.precision(10) ;
ost << endl << "Quantities in polytropic units : " << endl ;
ost << "==============================" << endl ;
ost << " ( r_poly = " << r_poly / km << " km )" << endl ;
ost << " d_e_max : " << separation() / r_poly << endl ;
ost << " d_G : "
<< ( star2.xa_barycenter() - star1.xa_barycenter() ) / r_poly
<< endl ;
ost << " Omega : " << omega * t_poly << endl ;
ost << " J : " << angu_mom()(2) / j_poly << endl ;
ost << " M_ADM : " << mass_adm() / m_poly << endl ;
ost << " M_Komar : " << mass_kom() / m_poly << endl ;
ost << " M_bar(star 1) : " << star1.mass_b() / m_poly << endl ;
ost << " M_bar(star 2) : " << star2.mass_b() / m_poly << endl ;
ost << " R_0(star 1) : " <<
0.5 * ( star1.ray_eq() + star1.ray_eq_pi() ) / r_poly << endl ;
ost << " R_0(star 2) : " <<
0.5 * ( star2.ray_eq() + star2.ray_eq_pi() ) / r_poly << endl ;
}
}
void Binary_xcts::write_global(ostream& ost) const {
using namespace Unites ;
const Map& mp1 = star1.get_mp() ;
const Mg3d* mg1 = mp1.get_mg() ;
int nz1 = mg1->get_nzone() ;
// Mass-shedding indicators
double dent1_eq = (star1.ent).dsdr().val_point(star1.ray_eq(),M_PI/2.,0.) ;
double dent1_pole = (star1.ent).dsdr().val_point(star1.ray_pole(),0.,0.) ;
double chi1 = fabs( dent1_eq / dent1_pole ) ;
double dent2_eq = (star2.ent).dsdr().val_point(star2.ray_eq(),M_PI/2.,0.) ;
double dent2_pole = (star2.ent).dsdr().val_point(star2.ray_pole(),0.,0.) ;
double chi2 = fabs( dent2_eq / dent2_pole ) ;
ost.precision(5) ;
ost << "# Grid 1 : " << nz1 << "x"
<< mg1->get_nr(0) << "x" << mg1->get_nt(0) << "x" << mg1->get_np(0)
<< " R_out(l) [km] : " ;
for (int l=0; l<nz1; l++) {
ost << " " << mp1.val_r(l, 1., M_PI/2, 0) / km ;
}
ost << endl ;
ost << "# VE(M) VE(M) [vol]" << endl ;
ost.setf(ios::scientific) ;
ost.width(14) ;
ost << virial() << " " << virial_vol() << endl ;
ost << "# d [km] "
<< " d_G [km] "
<< " d/(a1 +a1') "
<< " f [Hz] "
<< " M_ADM [M_sol] "
<< " M_ADM_vol [M_sol] "
<< " M_Komar [M_sol] "
<< " M_Komar_vol [M_sol] "
<< " J [G M_sol^2/c] " << endl ;
ost.precision(14) ;
ost.width(20) ;
ost << separation() / km ; ost.width(22) ;
ost << ( star2.xa_barycenter() - star1.xa_barycenter() ) / km ; ost.width(22) ;
ost << separation() / (star1.ray_eq() + star2.ray_eq()) ; ost.width(22) ;
ost << omega / (2*M_PI)* f_unit ; ost.width(22) ;
ost << mass_adm() / msol ; ost.width(22) ;
ost << mass_adm_vol() / msol ; ost.width(22) ;
ost << mass_kom() / msol ; ost.width(22) ;
ost << mass_kom_vol() / msol ; ost.width(22) ;
ost << angu_mom()(2)/ ( qpig / (4* M_PI) * msol*msol) << endl ;
ost << "# H_c(1)[c^2] "
<< " e_c(1)[rho_nuc] "
<< " M_B(1) [M_sol] "
<< " r_eq(1) [km] "
<< " a2/a1(1) "
<< " a3/a1(1) "
<< " chi1 " << endl ;
ost.width(20) ;
ost << star1.get_ent().val_grid_point(0,0,0,0) ; ost.width(22) ;
ost << star1.get_ener().val_grid_point(0,0,0,0) ; ost.width(22) ;
ost << star1.mass_b() / msol ; ost.width(22) ;
ost << star1.ray_eq() / km ; ost.width(22) ;
ost << star1.ray_eq_pis2() / star1.ray_eq() ; ost.width(22) ;
ost << star1.ray_pole() / star1.ray_eq() ; ost.width(22) ;
ost << chi1 << endl ;
ost << "# H_c(2)[c^2] "
<< " e_c(2)[rho_nuc] "
<< " M_B(2) [M_sol] "
<< " r_eq(2) [km] "
<< " a2/a1(2) "
<< " a3/a1(2) "
<< " chi2 " << endl ;
ost.width(20) ;
ost << star2.get_ent().val_grid_point(0,0,0,0) ; ost.width(22) ;
ost << star2.get_ener().val_grid_point(0,0,0,0) ; ost.width(22) ;
ost << star2.mass_b() / msol ; ost.width(22) ;
ost << star2.ray_eq() / km ; ost.width(22) ;
ost << star2.ray_eq_pis2() / star1.ray_eq() ; ost.width(22) ;
ost << star2.ray_pole() / star1.ray_eq() ; ost.width(22) ;
ost << chi2 << endl ;
// Quantities in polytropic units if the EOS is a polytropic one
// -------------------------------------------------------------
const Eos* p_eos1 = &( star1.get_eos() ) ;
const Eos_poly* p_eos_poly = dynamic_cast<const Eos_poly*>( p_eos1 ) ;
if ((p_eos_poly != 0x0) && ( star1.get_eos() == star2.get_eos() )) {
double kappa = p_eos_poly->get_kap() ;
double gamma = p_eos_poly->get_gam() ; ;
double kap_ns2 = pow( kappa, 0.5 /(gamma-1.) ) ;
// Polytropic unit of length in terms of r_unit :
double r_poly = kap_ns2 / sqrt(ggrav) ;
// Polytropic unit of time in terms of t_unit :
double t_poly = r_poly ;
// Polytropic unit of mass in terms of m_unit :
double m_poly = r_poly / ggrav ;
// Polytropic unit of angular momentum in terms of j_unit :
double j_poly = r_poly * r_poly / ggrav ;
ost << "# d [poly] "
<< " d_G [poly] "
<< " Omega [poly] "
<< " M_ADM [poly] "
<< " J [poly] "
<< " M_B(1) [poly] "
<< " M_B(2) [poly] " << endl ;
ost.width(20) ;
ost << separation() / r_poly ; ost.width(22) ;
ost << ( star2.xa_barycenter() - star1.xa_barycenter() ) / r_poly ; ost.width(22) ;
ost << omega * t_poly ; ost.width(22) ;
ost << mass_adm() / m_poly ; ost.width(22) ;
ost << angu_mom()(2) / j_poly ; ost.width(22) ;
ost << star1.mass_b() / m_poly ; ost.width(22) ;
ost << star2.mass_b() / m_poly << endl ;
}
}
//-------------------------------//
// Miscellaneous //
//-------------------------------//
double Binary_xcts::separation() const {
double dx = star1.mp.get_ori_x() - star2.mp.get_ori_x() ;
double dy = star1.mp.get_ori_y() - star2.mp.get_ori_y() ;
double dz = star1.mp.get_ori_z() - star2.mp.get_ori_z() ;
return sqrt( dx*dx + dy*dy + dz*dz ) ;
}
}
Lorene::Binary_xcts::set_der_0x0
void set_der_0x0() const
Sets to 0x0 all the pointers on derived quantities.
Definition binary_xcts.C:162
Lorene::Binary_xcts::virial_vol
double virial_vol() const
Estimates the relative error on the virial theorem (volume version).
Definition binary_global_xcts.C:345
Lorene::Binary_xcts::p_mass_kom
double * p_mass_kom
Total Komar mass of the system.
Definition binary_xcts.h:94
Lorene::Binary_xcts::x_axe
double x_axe
Absolute X coordinate of the rotation axis.
Definition binary_xcts.h:84
Lorene::Binary_xcts::write_global
void write_global(ostream &) const
Write global quantities in a formatted file.
Definition binary_xcts.C:296
Lorene::Binary_xcts::star2
Star_bin_xcts star2
Second star of the system.
Definition binary_xcts.h:69
Lorene::Binary_xcts::mass_adm_vol
double mass_adm_vol() const
Total ADM mass (computed by a volume integral).
Definition binary_global_xcts.C:113
Lorene::Binary_xcts::p_virial_vol
double * p_virial_vol
Virial theorem error (volume version).
Definition binary_xcts.h:109
Lorene::Binary_xcts::p_lin_mom
Tbl * p_lin_mom
Total linear momentum of the system.
Definition binary_xcts.h:100
Lorene::Binary_xcts::operator=
void operator=(const Binary_xcts &)
Assignment to another Binary_xcts.
Definition binary_xcts.C:182
Lorene::Binary_xcts::mass_kom_vol
double mass_kom_vol() const
Total Komar mass (computed by a volume integral).
Definition binary_global_xcts.C:176
Lorene::Binary_xcts::star1
Star_bin_xcts star1
First star of the system.
Definition binary_xcts.h:66
Lorene::Binary_xcts::sauve
void sauve(FILE *) const
Save in a file.
Definition binary_xcts.C:200
Lorene::Binary_xcts::mass_adm
double mass_adm() const
Total ADM mass.
Definition binary_global_xcts.C:82
Lorene::Binary_xcts::separation
double separation() const
Returns the coordinate separation of the two stellar centers [r_unit].
Definition binary_xcts.C:434
Lorene::Binary_xcts::del_deriv
void del_deriv() const
Deletes all the derived quantities.
Definition binary_xcts.C:146
Lorene::Binary_xcts::Binary_xcts
Binary_xcts(Map &mp1, int nzet1, const Eos &eos1, int irrot1, Map &mp2, int nzet2, const Eos &eos2, int irrot2)
Standard constructor.
Definition binary_xcts.C:72
Lorene::Binary_xcts::p_mass_adm
double * p_mass_adm
Total ADM mass of the system.
Definition binary_xcts.h:91
Lorene::Binary_xcts::p_total_ener
double * p_total_ener
Total energy of the system.
Definition binary_xcts.h:103
Lorene::Binary_xcts::operator<<
friend ostream & operator<<(ostream &, const Binary_xcts &)
Display.
Definition binary_xcts.C:212
Lorene::Binary_xcts::display_poly
void display_poly(ostream &) const
Display in polytropic units.
Definition binary_xcts.C:246
Lorene::Binary_xcts::operator>>
ostream & operator>>(ostream &) const
Operator >> (function called by the operator <<).
Definition binary_xcts.C:219
Lorene::Binary_xcts::mass_kom
double mass_kom() const
Total Komar mass.
Definition binary_global_xcts.C:149
Lorene::Binary_xcts::~Binary_xcts
~Binary_xcts()
Destructor.
Definition binary_xcts.C:136
Lorene::Binary_xcts::virial
double virial() const
Estimates the relative error on the virial theorem.
Definition binary_global_xcts.C:326
Lorene::Binary_xcts::p_angu_mom
Tbl * p_angu_mom
Total angular momentum of the system.
Definition binary_xcts.h:97
Lorene::Binary_xcts::et
Star_bin_xcts * et[2]
Array of the two stars (to perform loops on the stars): et[0] contains the address of star1 and et[1]...
Definition binary_xcts.h:75
Lorene::Binary_xcts::p_virial
double * p_virial
Virial theorem error.
Definition binary_xcts.h:106
Lorene::Binary_xcts::angu_mom
const Tbl & angu_mom() const
Total angular momentum.
Definition binary_global_xcts.C:213
Lorene::Binary_xcts::omega
double omega
Angular velocity with respect to an asymptotically inertial observer.
Definition binary_xcts.h:80
Lorene::Eos_poly
Polytropic equation of state (relativistic case).
Definition eos.h:757
Lorene::Eos_poly::get_gam
double get_gam() const
Returns the adiabatic index (cf. Eq. (3)).
Definition eos_poly.C:256
Lorene::Eos_poly::get_kap
double get_kap() const
Returns the pressure coefficient (cf.
Definition eos_poly.C:260
Lorene::Eos
Equation of state base class.
Definition eos.h:190
Lorene::Mg3d
Multi-domain grid.
Definition grilles.h:273
Lorene::Mg3d::get_np
int get_np(int l) const
Returns the number of points in the azimuthal direction ( ) in domain no. l.
Definition grilles.h:462
Lorene::Mg3d::get_nt
int get_nt(int l) const
Returns the number of points in the co-latitude direction ( ) in domain no. l.
Definition grilles.h:457
Lorene::Mg3d::get_nzone
int get_nzone() const
Returns the number of domains.
Definition grilles.h:448
Lorene::Mg3d::get_nr
int get_nr(int l) const
Returns the number of points in the radial direction ( ) in domain no. l.
Definition grilles.h:452
Lorene::sqrt
Cmp sqrt(const Cmp &)
Square root.
Definition cmp_math.C:220
Lorene::pow
Cmp pow(const Cmp &, int)
Power .
Definition cmp_math.C:348
Lorene::fread_be
int fread_be(int *aa, int size, int nb, FILE *fich)
Reads integer(s) from a binary file according to the big endian convention.
Definition fread_be.C:69
Lorene::fwrite_be
int fwrite_be(const int *aa, int size, int nb, FILE *fich)
Writes integer(s) into a binary file according to the big endian convention.
Definition fwrite_be.C:70
Lorene
Lorene prototypes.
Definition app_hor.h:64
Lorene::dsdr
virtual void dsdr(const Cmp &ci, Cmp &resu) const =0
Computes of a Cmp .
Lorene::Map
Map(const Mg3d &)
Constructor from a multi-domain 3D grid.
Definition map.C:139
Unites
Standard units of space, time and mass.