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gas.cc
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/**
* @file gas.cc
* @author Luca Maccione
* @email [email protected]
* @brief File where gas classes are implemented.
*/
#include "gas.h"
#include "grid.h"
#include "galaxy.h" // mw130620
#include "geometry.h"
#include "constants.h"
#include "input.h"
#include <fstream> //sk
using namespace std;
TH2Gas::TH2Gas(TGrid* Coord, Input* in, TGeometry* geom) : TGas() {
vector<double> x;
vector<double> y;
vector<double> z;
if (Coord->GetType() == "2D") {
x = Coord->GetR();
z = Coord->GetZ();
dimr = x.size();
dimx = dimr;
dimy = 1;
dimz = z.size();
for (int k = 0; k < dimx; k++) {
double r = x[k];
for (int l = 0; l < dimz; l++) {
double DeltaZ = Coord->GetDeltaZ(l);
double height_H2 = 0;
switch(in->gas_model) {
case BronfFerr :
height_H2 = (r > 2.5) ? 0.059 : 0.015;
density.push_back(2.0* (150.*exp(-pow((r-0.05)/.2, 2.))+0.49*exp(-pow((r-5.3)/2.2, 2.))+.24*exp(-pow((r-8.1)/1.5, 2.)))*exp(-M_LN2*pow(z[l]/height_H2,2.)));
break;
case NS :
density.push_back(2.0*.94*(11.2*exp(-(r)*(r)/.874)+.83*exp(-pow((r-4)/3.2, 2.)))*exp(-M_LN2*pow(z[l]/(1.06/1000.*(10.8*exp(0.28*(r))+42.78)), 2.)));
break;
case Galprop :
density.push_back(2.0*TGas::nH2_av(r, z[l], DeltaZ, dzzGal, in));
break;
default:
density.push_back(-1);
}
}
}
}
else {
x = Coord->GetX();
y = Coord->GetY();
z = Coord->GetZ();
dimx = x.size();
dimy = y.size();
dimz = z.size();
for (int k = 0; k < dimx; k++) {
for (int i = 0; i < dimy; i++) {
double r = sqrt(x[k]*x[k]+y[i]*y[i]);
for (int l = 0; l < dimz; l++) {
double DeltaZ = Coord->GetDeltaZ(l);
double height_H2 = 0;
switch(in->gas_model) {
case BronfFerr :
height_H2 = (r > 2.5) ? 0.059 : 0.015;
density.push_back(2.0* (150.*exp(-pow((r-0.05)/.2, 2.))+0.49*exp(-pow((r-5.3)/2.2, 2.))+.24*exp(-pow((r-8.1)/1.5, 2.)))*exp(-M_LN2*pow(z[l]/height_H2,2.)));
break;
case NS :
density.push_back(2.0*.94*(11.2*exp(-(r)*(r)/.874)+.83*exp(-pow((r-4)/3.2, 2.)))*exp(-M_LN2*pow(z[l]/(1.06/1000.*(10.8*exp(0.28*(r))+42.78)), 2.)));
break;
case Galprop :
density.push_back(2.0*TGas::nH2_av(r, z[l], DeltaZ, dzzGal, in));
break;
default:
density.push_back(-1);
}
//mw, 130326
double val = density.back();
val *= pow( in->LB_gasH2 * in->LB_gastotal, Coord->IsInLocalBubble(x[k],y[i],z[l]) );
density.pop_back();
density.push_back(val);
}
}
}
if (in->feedback >0) cout << "[MW] Total content of H2 gas before Spiral arms: " << GetTotalContent() << endl;
if(in->SA_type!="None") geom->ApplySpiral(density,in->SA_gasH2, in->SA_cut_gasH2);
}
if (in->feedback >0) cout << "[MW] Total content of H2 gas: " << GetTotalContent() << endl;
}
THIGas::THIGas(TGrid* Coord, Input* in, TGeometry* geom) : TGas() {
vector<double> x;
vector<double> y;
vector<double> z;
if (Coord->GetType() == "2D") {
x = Coord->GetR();
z = Coord->GetZ();
dimr = x.size();
dimx = dimr;
dimy = 1;
dimz = z.size();
for (int k = 0; k < dimx; k++) {
double r = x[k];
for (int l = 0; l < dimz; l++) {
double DeltaZ = Coord->GetDeltaZ(l);
double altezza_H1 = 0;
double densita_H1 = 0;
switch(in->gas_model) {
case BronfFerr :
if (r < 2.5) altezza_H1 = 0.045;
else if (r < 8.5) altezza_H1 = 0.115;
else altezza_H1 = 0.115*exp((r-8.5)/6.7);
if (r < 3.) densita_H1 = 0.57*exp((r-3.)/0.4)+8.*exp(-pow(r/0.2, 2.));
else if (r < 13.) densita_H1 = 0.57;
else densita_H1 = 0.57*exp(-(r-13.)/4.);
density.push_back( densita_H1*exp(-M_LN2*pow(z[l]/altezza_H1, 2.)) );
break;
case NS :
densita_H1 = .94*(.6*exp(-r/2.4) + .24*exp(-pow((r-9.5)/4.8, 2.)));
altezza_H1 = 1.06*(116.3 + 19.3*(r) + 4.1*(r)*(r) -0.05*(r)*(r)*(r))/1000.;
density.push_back(densita_H1*exp(-M_LN2*pow(z[l]/altezza_H1, 2.)));
break;
case Galprop :
density.push_back(TGas::nHI_av(r,z[l], DeltaZ, dzzGal));
break;
default:
density.push_back(-1);
}
}
}
}
else {
x = Coord->GetX();
y = Coord->GetY();
z = Coord->GetZ();
dimx = x.size();
dimy = y.size();
dimz = z.size();
for (int k = 0; k < dimx; k++) {
for (int i = 0; i < dimy; i++) {
double r = sqrt(x[k]*x[k]+y[i]*y[i]);
for (int l = 0; l < dimz; l++) {
double DeltaZ = Coord->GetDeltaZ(l);
double altezza_H1 = 0;
double densita_H1 = 0;
switch(in->gas_model) {
case BronfFerr :
if (r < 2.5) altezza_H1 = 0.045;
else if (r < 8.5) altezza_H1 = 0.115;
else altezza_H1 = 0.115*exp((r-8.5)/6.7);
if (r < 3.) densita_H1 = 0.57*exp((r-3.)/0.4)+8.*exp(-pow(r/0.2, 2.));
else if (r < 13.) densita_H1 = 0.57;
else densita_H1 = 0.57*exp(-(r-13.)/4.);
density.push_back( densita_H1*exp(-M_LN2*pow(z[l]/altezza_H1, 2.)) );
break;
case NS :
densita_H1 = .94*(.6*exp(-r/2.4) + .24*exp(-pow((r-9.5)/4.8, 2.)));
altezza_H1 = 1.06*(116.3 + 19.3*(r) + 4.1*(r)*(r) -0.05*(r)*(r)*(r))/1000.;
density.push_back(densita_H1*exp(-M_LN2*pow(z[l]/altezza_H1, 2.)));
break;
case Galprop :
density.push_back(TGas::nHI_av(r,z[l], DeltaZ, dzzGal));
break;
default:
density.push_back(-1);
}
//mw, 130326
double val = density.back();
val *= pow( in->LB_gasHI * in->LB_gastotal, Coord->IsInLocalBubble(x[k],y[i],z[l]) );
density.pop_back();
density.push_back(val);
}
}
}
if (in->feedback >0) cout << "[MW] Total content of HI gas before Spiral arms: " << GetTotalContent() << endl;
if(in->SA_type!="None") geom->ApplySpiral(density,in->SA_gasHI,in->SA_cut_gasHI);
}
if (in->feedback >0) cout << "[MW] Total content of HI gas: " << GetTotalContent() << endl;
}
THIIGas::THIIGas(TGrid* Coord, Input* in, TGeometry* geom) : TGas() {
vector<double> x;
vector<double> y;
vector<double> z;
if (Coord->GetType() == "2D") {
x = Coord->GetR();
z = Coord->GetZ();
dimr = x.size();
dimx = dimr;
dimy = 1;
dimz = z.size();
for (int k = 0; k < dimx; k++) {
double r = x[k];
for (int l = 0; l < dimz; l++) {
double DeltaZ = Coord->GetDeltaZ(l);
switch(in->gas_model) {
case BronfFerr :
case NS :
density.push_back(0);
break;
case Galprop :
density.push_back(TGas::nHII_av(r, z[l], DeltaZ, dzzGal));
//cout << density.back() << endl;
break;
default:
density.push_back(-1);
}
}
}
}
else {
x = Coord->GetX();
y = Coord->GetY();
z = Coord->GetZ();
dimx = x.size();
dimy = y.size();
dimz = z.size();
for (int k = 0; k < dimx; k++) {
for (int i = 0; i < dimy; i++) {
double r = sqrt(x[k]*x[k]+y[i]*y[i]);
for (int l = 0; l < dimz; l++) {
double DeltaZ = Coord->GetDeltaZ(l);
switch(in->gas_model) {
case BronfFerr :
case NS :
density.push_back(0);
break;
case Galprop :
density.push_back(TGas::nHII_av(r, z[l], DeltaZ, dzzGal));
break;
default:
density.push_back(-1);
}
//mw, 130326
double val = density.back();
val *= pow( in->LB_gasHII * in->LB_gastotal, Coord->IsInLocalBubble(x[k],y[i],z[l]) );
density.pop_back();
density.push_back(val);
}
}
}
if (in->feedback >0) cout << "[MW] Total content of HII gas before Spiral arms: " << GetTotalContent() << endl;
if(in->SA_type!="None") geom->ApplySpiral(density,in->SA_gasHII, in->SA_cut_gasHII);
}
if (in->feedback >0) cout << "[MW] Total content of HII gas: " << GetTotalContent() << endl;
}
TGas::TGas(TGrid* Coord, Input* in) {
//Construct TotalGas from other components!
vector<double> x;
vector<double> y;
vector<double> z;
double value = 0.0;
if (Coord->GetType() == "2D")
{
x = Coord->GetR();
z = Coord->GetZ();
dimr = x.size();
dimx = dimr;
dimy = 1;
dimz = z.size();
for (int k = 0; k < dimx; k++)
for (int l = 0; l < dimz; l++)
density.push_back(0);
}
else
{
x = Coord->GetX();
y = Coord->GetY();
z = Coord->GetZ();
dimx = x.size();
dimy = y.size();
dimz = z.size();
for (int k = 0; k < dimx; k++)
for (int i = 0; i < dimy; i++)
for (int l = 0; l < dimz; l++)
density.push_back(0);
}
return;
}
// Galprop:
//
// GAS DENSITY MODELS
double TGas::nH2_Gal(double r, double z, Input* in) {
int i;
double nH2_ = 0.0, fR,fZ0,fZh; // [B88]/Table 3
double R[18] ={ 0.00, 2.25, 2.75, 3.25, 3.75, 4.25, 4.75, 5.25, 5.75, // kpc, col.1
6.25, 6.75, 7.25, 7.75, 8.25, 8.75, 9.25, 9.75,10.25};
double Y[18] ={ 0.00, 1.5, 3.3, 5.8, 5.5, 8.4, 9.0, 9.6, 8.6, // CO, K km s^-1
9.1, 7.9, 9.2, 7.7, 5.0, 3.6, 4.8, 1.7, 0.0}; // (col.4)
double Z0[18]={0.039,0.039,0.036,0.000,-.008,0.001,-.010,-.001,-.004, // kpc, col.7
-.019,-.022,-.014,-.009,-.004,0.013,-.004,-.020,-.020};
double Zh[18]={0.077,0.077,0.080,0.061,0.065,0.071,0.072,0.082,0.083, // kpc, col.10
0.073,0.063,0.058,0.072,0.080,0.066,0.023,0.147,0.147};
double H2toCO = X_CO(r, in);
H2toCO *= 1.e20;
if(r > R[17]) return nH2_;
for (i=0; i<17; i++) if(R[i] <= r && r <= R[i+1]) break;
fR = Y[i] + ( Y[i+1] - Y[i])/(R[i+1] - R[i])*(r - R[i]);
fZ0= Z0[i] + (Z0[i+1] -Z0[i])/(R[i+1] - R[i])*(r - R[i]);
fZh= Zh[i] + (Zh[i+1] -Zh[i])/(R[i+1] - R[i])*(r - R[i]);
nH2_ = fR * exp( -log(2.)*pow( (z-fZ0)/fZh, 2 ) ) *H2toCO/kpc;
return nH2_< 0. ? 0.: nH2_;
}
double TGas::nHI_Gal(double Rkpc, double Zkpc)
{
int i; // Table 1 [GB76]
double R[30] ={ 0.0, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, // kpc, col.1
6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5,10.0,10.5,11.0,
11.5,12.0,12.5,13.0,13.5,14.0,14.5,15.0,15.5,16.0},
Y[30] ={ .10, .13, .14, .16, .19, .25, .30, .33, .32, .31, // nHI, cm^-3
.30, .37, .38, .36, .32, .29, .38, .40, .25, .23, // (col.3)
.32, .36, .32, .25, .16, .10, .09, .08, .06, .00};
double fR, fZ,fZ1=0.,fZ2=0., R1,R2=R[29], Y1,Y2=Y[29];
double nGB =0.33, nDL =0.57; // cm^-3, disk density @ 4-8 kpc; [GB76], [DL90]
double A1=0.395, z1=0.212/2., // cm^-3, kpc; Z-distribution parameters from [DL90]
A2=0.107, z2=0.530/2.,
B =0.064, zh=0.403;
for (i=0; i<29; i++) if(R[i] <= Rkpc && Rkpc <= R[i+1]) break;
R1 = (R[i]+R[i+1])/2; Y1 = Y[i];
if(Rkpc < R1)
{
if(i> 0) { R2 = (R[i-1]+R[i])/2; Y2 = Y[i-1]; }
else { R2 = R[0]; Y2 = Y[0]; }
}
else if(i<28) { R2 = (R[i+1]+R[i+2])/2; Y2 = Y[i+1]; }
fR = Y1 +(Y2 -Y1)/(R2 -R1)*(Rkpc -R1); // interpolation in R
R2 = (R[28] +R[29]) /2;
if(Rkpc > R2) fR = Y[28]*exp(-(Rkpc-R2)/3); // extrapolation in R
// calculation of Z-dependence
if(Rkpc <10.) // [DL90]
fZ1 =A1*exp(-log(2.)*pow(Zkpc/z1,2))+A2*exp(-log(2.)*pow(Zkpc/z2,2))+B*exp(-fabs(Zkpc)/zh);
if(Rkpc > 8.) fZ2=nDL*exp(-pow(Zkpc /(0.0523*exp(0.11*Rkpc)), 2)); // [C86] IMOS20010220
if(Rkpc <= 8.) fZ = fZ1;
else
{ if(Rkpc >=10.) fZ = fZ2;
else fZ = fZ1 +(fZ2 -fZ1)/2.*(Rkpc -8.); // interp. [DL90] & [C86]
}
return fZ *fR/nGB;
}
//**.****|****.****|****.****|****.****|****.****|****.****|****.****|****.****|
double TGas::nHII_Gal(double Rkpc,double Zkpc)
{
double fne1=0.025, H1=1.00, A1=20.0;
double fne2=0.200, H2=0.15, A2= 2.0;
double R2=4.0;
double ne1 = fne1 * exp(-fabs(Zkpc)/H1) * exp (-pow( Rkpc /A1, 2));
double ne2 = fne2 * exp(-fabs(Zkpc)/H2) * exp (-pow((Rkpc-R2)/A2, 2));
return ne1+ne2;
}
double TGas::nH2_av(double R, double z,double dz,double dzz, Input* in)
{
// double R=sqrt(x*x + y*y);
double nH2_av_=0.0;
int nuse=0;
for (double zz=z-dz/2.; zz<=z+dz/2.; zz+=dzz)
{
nH2_av_+=nH2_Gal(R,zz, in);
nuse++;
}
return nH2_av_/nuse;
}
//**.****|****.****|****.****|****.****|****.****|****.****|****.****|****.****|
double TGas::nHI_av(double R, double z,double dz,double dzz)
{
// double R=sqrt(x*x + y*y);
double nHI_av_=0.0;
int nuse=0;
for (double zz=z-dz/2.; zz<=z+dz/2.; zz+=dzz)
{
nHI_av_+=nHI_Gal(R,zz);
nuse++;
}
return nHI_av_/nuse;
}
//**.****|****.****|****.****|****.****|****.****|****.****|****.****|****.****|
double TGas::nHII_av(double R, double z,double dz,double dzz)
{
// double R=sqrt(x*x + y*y);
double nHII_av_=0.0;
int nuse=0;
for(double zz=z-dz/2.; zz<=z+dz/2.; zz+=dzz)
{
nHII_av_+=nHII_Gal(R,zz);
nuse++;
}
return nHII_av_/nuse;
}
//**.****|****.****|****.****|****.****|****.****|****.****|****.****|****.****|
double TGas::X_CO(double r, Input* in) {
switch (in->xco_mode) {
case(SM96): // Strong&Mattox 1996
return 1.9;
break;
case (galprop_2004): //Strong2004
if (r < 3.5)
return 0.4;
else if (r < 5.5)
return 0.6;
else if (r < 7.5)
return 0.8;
else if (r < 9.5)
return 1.5;
else return 10.;
break;
case (galprop_2010): //compatible with Fermi-LAT gamma profile?
if (r < 2.0)
return 0.4;
else if (r < 5.5)
return 1.5;
else if (r < 7.5)
return 1.5;
else if (r < 10.0)
return 0.75;
else if (r < 12.0)
return 5.;
else if (r < 17.0)
return 12;
else if (r < 19.0)
return 60;
else if (r < 30.0)
return 200;
else
return 200;
break;
case (constant):
return in->xco_constant;
break;
case (dragon):
if (r < 2.0)
return in->xco_inner;
else
return in->xco_outer;
break;
default:
return 1.;
}
}