1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/*
* Method of class Bin_bhns_extr to set some analytical form
*
* (see file bin_bhns_extr.h for documentation).
*
*/
/*
* Copyright (c) 2004 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
*
*/
char bin_bhns_extr_anashift_C[] = "$Header: /cvsroot/Lorene/C++/Source/Bin_bhns_extr/bin_bhns_extr_anashift.C,v 1.3 2014/10/13 08:52:41 j_novak Exp $" ;
/*
* $Id: bin_bhns_extr_anashift.C,v 1.3 2014/10/13 08:52:41 j_novak Exp $
* $Log: bin_bhns_extr_anashift.C,v $
* Revision 1.3 2014/10/13 08:52:41 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.2 2014/10/06 15:13:00 j_novak
* Modified #include directives to use c++ syntax.
*
* Revision 1.1 2004/11/30 20:45:29 k_taniguchi
* *** empty log message ***
*
*
* $Header: /cvsroot/Lorene/C++/Source/Bin_bhns_extr/bin_bhns_extr_anashift.C,v 1.3 2014/10/13 08:52:41 j_novak Exp $
*
*/
// C headers
#include <cmath>
// Lorene headers
#include "bin_bhns_extr.h"
#include "unites.h"
namespace Lorene {
void Bin_bhns_extr::analytical_shift() {
using namespace Unites ;
// BH-NS binary systems should be relativistic
// -------------------------------------------
if ( !star.is_relativistic() ) {
cout << "BH-NS binary systems should be relativistic !!!" << endl ;
abort() ;
}
// Radius of the neutron star
double a0 = star.ray_eq() ;
// G M Omega R
double www = ggrav * star.mass_g() * omega * separ ;
// Approximates the mass ratio -> 0
const Map& mp = star.get_mp() ;
Tenseur tmp(mp) ;
Tenseur tmp_ext(mp) ;
int nzet = star.get_nzet() ;
int nzm1 = mp.get_mg()->get_nzone() - 1 ;
//-------------------
// Irrotational case
//-------------------
// Since this formula is only an initial guess, we use it
// also for the corotating case.
// Computation of w_shift
// ----------------------
star.set_w_shift().set_etat_qcq() ;
// X component
// -----------
star.set_w_shift().set(0) = 0. ;
// Y component
// -----------
// For the incompressible case :
tmp.set_etat_qcq() ;
tmp.set() = 6. * www / a0 * ( 1. - (mp.r)*(mp.r) / (3.*a0*a0) ) ;
tmp.set().annule(nzet, nzm1) ;
tmp.set_std_base() ;
tmp_ext.set_etat_qcq() ;
tmp_ext.set() = 4. * www / mp.r ;
tmp_ext.set().annule(0, nzet-1) ;
tmp_ext.set_std_base() ;
star.set_w_shift().set(1) = tmp() + tmp_ext() ;
// Z component
// -----------
star.set_w_shift().set(2) = 0. ;
// Sets the standard spectral bases for Cartesian components
star.set_w_shift().set_std_base() ;
// Computation of khi_shift
//-------------------------
tmp.set() = 2. * www / a0 * (mp.y)
* ( 1. - 3.*(mp.r)*(mp.r) / (5.*a0*a0) ) ;
tmp.set().annule(nzet, nzm1) ;
tmp.set_std_base() ;
tmp_ext.set() = 0.8 * www * a0 * a0 * (mp.sint) * (mp.sinp)
/ ((mp.r)*(mp.r)) ;
tmp_ext.set().annule(0, nzet-1) ;
tmp_ext.set_std_base() ;
star.set_khi_shift() = tmp + tmp_ext ;
// Sets the standard spectral bases for a scalar field
star.set_khi_shift().set_std_base() ;
}
}
|
