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authorAaron LI <aaronly.me@outlook.com>2017-02-17 23:26:07 +0800
committerAaron LI <aaronly.me@outlook.com>2017-02-17 23:26:07 +0800
commit61c7e9781c1bb3447fc5ae2362ebbac12158e4d3 (patch)
treed934cfc647e4db8def2d6bbf48a4230fdae18aae /mass_profile
parent405b19cfb985f2f34570c403ef14876bccd502a3 (diff)
downloadchandra-acis-analysis-61c7e9781c1bb3447fc5ae2362ebbac12158e4d3.tar.bz2
Remove the unused 'fit_nfw_sbp.cpp' with 'nfw_ne.hpp'
Diffstat (limited to 'mass_profile')
-rw-r--r--mass_profile/Makefile7
-rw-r--r--mass_profile/fit_nfw_sbp.cpp416
-rw-r--r--mass_profile/nfw_ne.hpp204
3 files changed, 1 insertions, 626 deletions
diff --git a/mass_profile/Makefile b/mass_profile/Makefile
index c13b312..67e9aae 100644
--- a/mass_profile/Makefile
+++ b/mass_profile/Makefile
@@ -23,7 +23,7 @@ endif
OPT_UTIL_INC ?= -I../opt_utilities
-TARGETS= fit_nfw_sbp fit_dbeta_sbp fit_beta_sbp \
+TARGETS= fit_dbeta_sbp fit_beta_sbp \
fit_wang2012_model \
fit_nfw_mass fit_mt_pl fit_lt_pl fit_mt_bpl \
fit_lt_bpl calc_lx_dbeta calc_lx_beta
@@ -33,8 +33,6 @@ all: $(TARGETS)
# NOTE:
# Object/source files should placed *before* libraries (order matters)
-fit_nfw_sbp: fit_nfw_sbp.o
- $(CXX) $(CXXFLAGS) $^ -o $@ $(OPT_UTIL_INC)
fit_dbeta_sbp: fit_dbeta_sbp.o beta_cfg.o report_error.o
$(CXX) $(CXXFLAGS) $^ -o $@ $(OPT_UTIL_INC)
@@ -67,9 +65,6 @@ fit_lt_bpl: fit_lt_bpl.cpp
$(CXX) $(CXXFLAGS) $< -o $@ $(OPT_UTIL_INC)
-fit_nfw_sbp.o: fit_nfw_sbp.cpp nfw_ne.hpp $(HEADERS)
- $(CXX) $(CXXFLAGS) -c $< $(OPT_UTIL_INC)
-
fit_dbeta_sbp.o: fit_dbeta_sbp.cpp constrained_dbeta.hpp $(HEADERS)
$(CXX) $(CXXFLAGS) -c $< $(OPT_UTIL_INC)
diff --git a/mass_profile/fit_nfw_sbp.cpp b/mass_profile/fit_nfw_sbp.cpp
deleted file mode 100644
index 9ac8401..0000000
--- a/mass_profile/fit_nfw_sbp.cpp
+++ /dev/null
@@ -1,416 +0,0 @@
-/*
- Fitting the surface brightness profile with an NFW-based surface brightness model
- Author: Junhua Gu
- Last modification 20120721
- The temperature is assumed to be an allen model with a minimum temperature assumed
-*/
-
-
-#include <iostream>
-#include <fstream>
-#include "vchisq.hpp"
-#include "nfw_ne.hpp"
-#include <data_sets/default_data_set.hpp>
-#include <methods/powell/powell_method.hpp>
-#include <core/freeze_param.hpp>
-#include <error_estimator/error_estimator.hpp>
-#include "spline.hpp"
-
-using namespace std;
-using namespace opt_utilities;
-
-//double s=5.63136645E20;
-const double M_sun=1.988E33;//solar mass in g
-const double kpc=3.086E21;//kpc in cm
-
-//A class enclosing the spline interpolation method
-class spline_func_obj
- :public func_obj<double,double>
-{
- //has an spline object
- spline<double> spl;
-public:
- //This function is used to calculate the intepolated value
- double do_eval(const double& x)
- {
- /*
- if(x<=spl.x_list[0])
- {
- return spl.y_list[0];
- }
- if(x>=spl.x_list.back())
- {
- return spl.y_list.back();
- }
- */
- return spl.get_value(x);
- }
-
- //we need this function, when this object is performing a clone of itself
- spline_func_obj* do_clone()const
- {
- return new spline_func_obj(*this);
- }
-
-public:
- //add points to the spline object, after which the spline will be initialized
- void add_point(double x,double y)
- {
- spl.push_point(x,y);
- }
-
- //before getting the intepolated value, the spline should be initialzied by calling this function
- void gen_spline()
- {
- spl.gen_spline(0,0);
- }
-};
-
-//Allen temperature model
-
-int main(int argc,char* argv[])
-{
- if(argc!=2)
- {
- cerr<<argv[0]<<" <configure file>"<<endl;
- cerr<<"Here is a sample of the configure file"<<endl;
- cerr<<"radius_file radius1.dat\n"
- "sbp_file\tsbp1.dat\n"
- "cfunc_file\tcfunc.dat\n"
- "n0\t\t.04\n"
- "rs\t\t816\n"
- "rho0\t\t.01\n"
- "bkg\t\t0\n"
- "cm_per_pixel\t1.804E21\n"
- "z\t\t0.062476\n"
- "T_file\t\tT.dat"
- <<endl;
- cerr<<"Notes:"<<endl;
- cerr<<"n0 is in the unit of cm^-3"<<endl;
- cerr<<"rs is in the unit of pixel"<<endl;
- cerr<<"rho0 is in the unit of mass of proton per cm^3"<<endl;
-
- return -1;
- }
- //define a map to store the parameters
- std::map<std::string,std::string> arg_map;
- //open the configuration file
- ifstream cfg_file(argv[1]);
- assert(cfg_file.is_open());
- for(;;)
- {
- std::string key;
- std::string value;
- cfg_file>>key>>value;
- if(!cfg_file.good())
- {
- cfg_file.close();
- break;
- }
- arg_map[key]=value;
- }
- //check whether following parameters are defined in the configuration file
- assert(arg_map.find("radius_file")!=arg_map.end());
- assert(arg_map.find("sbp_file")!=arg_map.end());
- assert(arg_map.find("cfunc_file")!=arg_map.end());
- assert(arg_map.find("T_file")!=arg_map.end());
- assert(arg_map.find("z")!=arg_map.end());
- const double z=atof(arg_map["z"].c_str());
- double r_min=0;
- if(arg_map.find("r_min")!=arg_map.end())
- {
- r_min=atof(arg_map["r_min"].c_str());
- cerr<<"r_min presents and its value is "<<r_min<<endl;
- }
- //note that in this program, the radius are not the central value of each annuli or pie region, but the boundaries.
- //for example, if we have a set of radius and surface brightness values as follows:
- /*
- radius width surface brightness
- 1 1 x
- 2 1 x
- 3 1 x
-
- then the radius is stored as
- 0 1.5 2.5 3.5
- note that there should be 4 radius values, although only to represent 3 annuli.
- this will be convenient to calculate the volume of each spherical shell,
- and can naturally ensure the annuli are adjacent with each other, with out any gaps.
-
-
- */
-
- std::vector<double> radii;//to store radius
- std::vector<double> sbps;//to store the surface brightness value
- std::vector<double> sbpe;//to store the sbp error
- //read in radius file
- /*
- About the format of the radius file:
- the radius file contains only radius, separated by space or line feed (i.e., the <ENTER> key).
- the unit should be pixel
-
- The number of radius can be larger than the number of annuli+1, the exceeded radius can be used
- to calculate the influence of outer shells.
- */
- int ncut=0;
- for(ifstream ifs(arg_map["radius_file"].c_str());;)
- {
- assert(ifs.is_open());
- double x;
- ifs>>x;
- if(!ifs.good())
- {
- break;
- }
- if(x<r_min)
- {
- ++ncut;
- continue;
- }
- cerr<<x<<endl;
- radii.push_back(x);
- }
- //read in surface brightness file
- /*
- the surface brightness file contains two columns, that are surface brightness and the error, respectively.
- */
- for(ifstream ifs(arg_map["sbp_file"].c_str());;)
- {
- assert(ifs.is_open());
- double x,xe;
- ifs>>x>>xe;
- if(!ifs.good())
- {
- break;
- }
- if(ncut)
- {
- --ncut;
- continue;
- }
- cerr<<x<<"\t"<<xe<<endl;
- sbps.push_back(x);
- sbpe.push_back(xe);
- }
- //cerr<<radii.size()<<"\t"<<sbps.size()<<endl;
- //return 0;
- spline_func_obj cf;
-
- //read in the cooling function file
- /*
- the cooling function file contains two columns, that are radius (central value, in pixel) and the ``reduced cooling function''
- the reduced cooling function is calculated as follows
- by using wabs*apec model, fill the kT, z, nH to the actual value (derived from deproject spectral fitting),
- and fill norm as 1E-14/(4*pi*(Da*(1+z))^2).
- then use flux e1 e2 (e1 and e2 are the energy limits of the surface brightness profile) to get the cooling function (in photon counts,
- not in erg/s)
- */
- for(ifstream ifs(arg_map["cfunc_file"].c_str());;)
- {
- assert(ifs.is_open());
- double x,y;
- ifs>>x>>y;
- if(!ifs.good())
- {
- break;
- }
- cerr<<x<<"\t"<<y<<endl;
- //cf.add_point(x,y*2.1249719395939022e-68);//change with source
- cf.add_point(x,y);//change with source
- }
- cf.gen_spline();
-
- for(double x=0;x<1000;x++)
- {
- //cout<<x<<"\t"<<cf(x)<<endl;
- }
- //return 0;
- //cout<<radii.size()<<endl;
- //cout<<sbps.size()<<endl;
-
- //initial a data set object and put the data together
- default_data_set<std::vector<double>,std::vector<double> > ds;
- ds.add_data(data<std::vector<double>,std::vector<double> >(radii,sbps,sbpe,sbpe,radii,radii));
-
- //initial a fitter object
- fitter<vector<double>,vector<double>,vector<double>,double> f;
- //load the data set into the fitter object
- f.load_data(ds);
- //define a projector object
- //see projector for more detailed information
- projector<double> a;
- //define the nfw surface brightness profofile model
- nfw_ne<double> nfw;
- //attach the cooling function into the projector
- a.attach_cfunc(cf);
- assert(arg_map.find("cm_per_pixel")!=arg_map.end());
- //set the cm to pixel ratio
- double cm_per_pixel=atof(arg_map["cm_per_pixel"].c_str());
- a.set_cm_per_pixel(cm_per_pixel);
- nfw.set_cm_per_pixel(cm_per_pixel);
- //define the temperature profile model
- spline_func_obj tf;
-
- for(ifstream ifs_tfunc(arg_map["T_file"].c_str());;)
- {
- assert(ifs_tfunc.is_open());
- double x,y;
- ifs_tfunc>>x>>y;
- if(!ifs_tfunc.good())
- {
- break;
- }
- if(x<r_min)
- {
- continue;
- }
- tf.add_point(x,y);
- }
- tf.gen_spline();
-
- //attach the temperature, surface brightness model and projector together
- nfw.attach_Tfunc(tf);
- a.attach_model(nfw);
- f.set_model(a);
- //define the chi-square statistic
- vchisq<double> c;
- c.verbose(true);
- f.set_statistic(c);
- //set the optimization method, here we use powell method
- f.set_opt_method(powell_method<double,std::vector<double> >());
- //set the initial values
- double n0=atof(arg_map["n0"].c_str());
- double rho0=atof(arg_map["rho0"].c_str());
- double rs=atof(arg_map["rs"].c_str());
- double bkg=atof(arg_map["bkg"].c_str());
- f.set_param_value("n0",n0);
- f.set_param_value("rho0",rho0);
- f.set_param_value("rs",rs);
-
-
- f.set_param_value("bkg",bkg);
-
- cout<<f.get_data_set().size()<<endl;
- cout<<f.get_num_params()<<endl;
-#if 1
- //perform the fitting
- f.fit();
- f.set_precision(1e-10);
- f.fit();
- f.clear_param_modifier();
- f.fit();
-#endif
- //output the parameters
- ofstream param_output("nfw_param.txt");
-
- for(size_t i=0;i<f.get_num_params();++i)
- {
- cout<<f.get_param_info(i).get_name()<<"\t"<<abs(f.get_param_info(i).get_value())<<endl;
- param_output<<f.get_param_info(i).get_name()<<"\t"<<abs(f.get_param_info(i).get_value())<<endl;
- }
- c.verbose(false);
- f.set_statistic(c);
-#if 1
- f.fit();
- f.fit();
-#endif
- //fetch the fitting result
- std::vector<double> p=f.get_all_params();
- f.clear_param_modifier();
- std::vector<double> mv=f.eval_model(radii,p);
- cerr<<mv.size()<<endl;
- //output the results
- ofstream ofs_sbp("sbp_fit.qdp");
- ofstream ofs_resid("resid.qdp");
- ofs_resid<<"read serr 2"<<endl;
- //output the surface brightness profile
- ofs_sbp<<"read serr 2"<<endl;
- ofs_sbp<<"skip single"<<endl;
- for(size_t i=1;i<sbps.size();++i)
- {
- double x=(radii[i]+radii[i-1])/2;
- double y=sbps[i-1];
- double ye=sbpe[i-1];
- double ym=mv[i-1];
- ofs_sbp<<x*cm_per_pixel/kpc<<"\t"<<y<<"\t"<<ye<<"\t"<<ym<<endl;
- ofs_resid<<x*cm_per_pixel/kpc<<"\t"<<(y-ym)/ye<<"\t1\n";
- }
- //output the electron density
- mv=nfw.eval(radii,p);
- ofstream ofs_rho("rho_fit.qdp");
- for(size_t i=1;i<sbps.size();++i)
- {
- double x=(radii[i]+radii[i-1])/2;
- double ym=mv[i-1];
- ofs_rho<<x*cm_per_pixel/kpc<<"\t"<<ym<<endl;
- }
- //output integral mass profile
- rho0=f.get_param_value("rho0")*1.67E-24;
- rs=f.get_param_value("rs")*cm_per_pixel;
- ofstream ofs_int_mass("mass_int.qdp");
- for(double r=0;r<2000*kpc;r+=kpc)
- {
- ofs_int_mass<<r/kpc<<"\t"<<nfw_mass_enclosed(r,abs(rho0),abs(rs))/M_sun<<endl;
- }
- //calculate the overdensity profile
- ofstream ofs_overdensity("overdensity.qdp");
-
- std::vector<double> radius_list;
- std::vector<double> delta_list;
-
- cerr<<"delta\tr_delta (kpc)\tr_delta (pixel)\tmass_delta (solar mass)\n";
- for(double r=kpc;r<6000*kpc;r+=kpc)
- {
- double delta=nfw_average_density(r,abs(rho0),abs(rs))/calc_critical_density(z);
- radius_list.push_back(r);
- delta_list.push_back(delta);
-
- /*
- if(delta<=200&&!hit_200)
- {
- hit_200=true;
- cerr<<200<<"\t"<<r/kpc<<"\t\t"<<r/cm_per_pixel<<"\t\t"<<nfw_mass_enclosed(r,abs(rho0),abs(rs))/M_sun<<endl;
- break;
- }
- if(delta<=500&&!hit_500)
- {
- hit_500=true;
- cerr<<500<<"\t"<<r/kpc<<"\t\t"<<r/cm_per_pixel<<"\t\t"<<nfw_mass_enclosed(r,abs(rho0),abs(rs))/M_sun<<endl;
- }
- */
- ofs_overdensity<<r/kpc<<"\t"<<delta<<endl;
- }
-
- for(size_t i=0;i<radius_list.size()-1;++i)
- {
- double r=radius_list[i];
- if(delta_list[i]>=200&&delta_list[i+1]<200)
- {
- cerr<<200<<"\t"<<r/kpc<<"\t\t"<<r/cm_per_pixel<<"\t\t"<<nfw_mass_enclosed(r,abs(rho0),abs(rs))/M_sun<<endl;
- }
-
- if(delta_list[i]>=500&&delta_list[i+1]<500)
- {
- cerr<<500<<"\t"<<r/kpc<<"\t\t"<<r/cm_per_pixel<<"\t\t"<<nfw_mass_enclosed(r,abs(rho0),abs(rs))/M_sun<<endl;
- }
-
- if(delta_list[i]>=1500&&delta_list[i+1]<1500)
- {
- cerr<<1500<<"\t"<<r/kpc<<"\t\t"<<r/cm_per_pixel<<"\t\t"<<nfw_mass_enclosed(r,abs(rho0),abs(rs))/M_sun<<endl;
- }
-
- if(delta_list[i]>=2500&&delta_list[i+1]<2500)
- {
- cerr<<2500<<"\t"<<r/kpc<<"\t\t"<<r/cm_per_pixel<<"\t\t"<<nfw_mass_enclosed(r,abs(rho0),abs(rs))/M_sun<<endl;
- }
-
- }
-
- //output the M200 and R200
- //cerr<<"M200="<<nfw_mass_enclosed(r200,abs(rho0),abs(rs))/M_sun<<" solar mass"<<endl;
- //cerr<<"R200="<<r200/kpc<<" kpc"<<endl;
- //for(int i=0;i<p.size();++i)
- //{
- //cerr<<p[i]<<endl;
- //}
- return 0;
-}
diff --git a/mass_profile/nfw_ne.hpp b/mass_profile/nfw_ne.hpp
deleted file mode 100644
index 1eeb17c..0000000
--- a/mass_profile/nfw_ne.hpp
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- Gas density profile derived from nfw mass profile and temperature profile
- Author: Junhua Gu
- Last modification: 20120721
-*/
-
-#ifndef NFW_NE
-#define NFW_NE
-#include "projector.hpp"
-#include <algorithm>
-#include <functional>
-#include <numeric>
-
-//a series of physical constants
-static const double G=6.673E-8;//cm^3 g^-1 s^2
-static const double mu=1.4074;
-static const double mp=1.67262158E-24;//g
-static const double k=1.60217646E-9;//erg/keV
-static const double c=2.99792458E10;//cm/s
-
-
-namespace opt_utilities
-{
- //the nfw mass enclosed within a radius r, with parameter rho0 and rs
- template <typename T>
- T nfw_mass_enclosed(T r,T rho0,T rs)
- {
- return 4*pi*rho0*rs*rs*rs*(std::log((r+rs)/rs)-r/(r+rs));
- }
-
- //average mass density
- template <typename T>
- T nfw_average_density(T r,T rho0,T rs)
- {
- if(r==0)
- {
- return rho0;
- }
-
- return nfw_mass_enclosed(r,rho0,rs)/(4.*pi/3*r*r*r);
- }
-
- //calculate critical density from z, under following cosmological constants
- static double calc_critical_density(double z,
- const double H0=2.3E-18,
- const double Omega_m=.27)
- {
- const double E=std::sqrt(Omega_m*(1+z)*(1+z)*(1+z)+1-Omega_m);
- const double H=H0*E;
- return 3*H*H/8/pi/G;
- }
-
-
- //a class wraps method of calculating gas density from mass profile and temperature profile
- template <typename T>
- class nfw_ne
- :public model<std::vector<T>,std::vector<T>,std::vector<T> >
- {
- private:
- //pointer to temperature profile function
- func_obj<T,T>* pTfunc;
- //cm per pixel
- T cm_per_pixel;
- public:
- //default constructor
- nfw_ne()
- :pTfunc(0),cm_per_pixel(1)
- {
-
- this->push_param_info(param_info<std::vector<T>,std::string>("rho0",1));//in mp
- this->push_param_info(param_info<std::vector<T>,std::string>("rs",100));
- this->push_param_info(param_info<std::vector<T>,std::string>("n0",.01));
- }
-
- //copy constructor
- nfw_ne(const nfw_ne& rhs)
- :cm_per_pixel(rhs.cm_per_pixel)
- {
- if(rhs.pTfunc)
- {
- pTfunc=rhs.pTfunc->clone();
- }
- else
- {
- pTfunc=0;
- }
- //initial parameter list
- this->push_param_info(param_info<std::vector<T>,std::string>("rho0",rhs.get_param_info("rho0").get_value()));
- this->push_param_info(param_info<std::vector<T>,std::string>("rs",rhs.get_param_info("rs").get_value()));
- this->push_param_info(param_info<std::vector<T>,std::string>("n0",rhs.get_param_info("n0").get_value()));
- }
-
- //assignment operator
- nfw_ne& operator=(const nfw_ne& rhs)
- {
- cm_per_pixel=rhs.cm_per_pixel;
- if(pTfunc)
- {
- pTfunc->destroy();
- }
- if(rhs.pTfunc)
- {
- pTfunc=rhs.pTfunc->clone();
- }
- }
-
- //destructor
- ~nfw_ne()
- {
- if(pTfunc)
- {
- pTfunc->destroy();
- }
- }
-
- public:
- //attach the temperature profile function
- void attach_Tfunc(const func_obj<T,T>& Tf)
- {
- if(pTfunc)
- {
- pTfunc->destroy();
- }
- pTfunc=Tf.clone();
- }
-
- //set the cm per pixel value
- void set_cm_per_pixel(const T& x)
- {
- cm_per_pixel=x;
- }
-
- //clone self
- nfw_ne<T>* do_clone()const
- {
- return new nfw_ne<T>(*this);
- }
-
-
- //calculate density under parameters p, at radius r
- /*
- r is a vector, which stores a series of radius values
- the annuli or pie regions are enclosed between any two
- adjacent radii.
- so the returned value has length smaller than r by 1.
- */
- std::vector<T> do_eval(const std::vector<T> & r,
- const std::vector<T>& p)
- {
- assert(pTfunc);
- //const T kT_erg=k*5;
- T rho0=std::abs(p[0])*mp;
- T rs=std::abs(p[1]);
- T n0=std::abs(p[2]);
- T rs_cm=rs*cm_per_pixel;
-
- std::vector<T> yvec(r.size());
- const T kT_erg0=pTfunc->eval((r.at(0)+r.at(1))/2)*k;
- //calculate the integration
-#ifdef _OPENMP
-#pragma omp parallel for schedule(dynamic)
-#endif
- for(size_t i=0;i<r.size();++i)
- {
- T r_cm=r[i]*cm_per_pixel;
- T kT_erg=pTfunc->eval(r[i])*k;
- if(abs(r_cm)==0)
- {
- continue;
- }
- yvec.at(i)=G*nfw_mass_enclosed(r_cm,rho0,rs_cm)*mu*mp/kT_erg/r_cm/r_cm;
- //std::cout<<r_cm/1e20<<"\t"<<nfw_mass_enclosed(r_cm,rho0,rs_cm)/1e45<<std::endl;
- //std::cout<<r_cm/1e20<<"\t"<<G*nfw_mass_enclosed(r_cm,rho0,rs_cm)*mu*mp/kT_erg/r_cm/r_cm<<std::endl;
- }
-
- std::vector<T> ydxvec(r.size()-1);
-#ifdef _OPENMP
-#pragma omp parallel for schedule(dynamic)
-#endif
- for(size_t i=1;i<r.size();++i)
- {
- T dr=r[i]-r[i-1];
- T dr_cm=dr*cm_per_pixel;
- ydxvec.at(i-1)=(yvec[i]+yvec[i-1])/2*dr_cm;
- }
- std::partial_sum(ydxvec.begin(),ydxvec.end(),ydxvec.begin());
- //construct the result
- std::vector<T> result(r.size()-1);
-#ifdef _OPENMP
-#pragma omp parallel for schedule(dynamic)
-#endif
- for(size_t i=0;i<r.size()-1;++i)
- {
- T y=-ydxvec.at(i);
- T kT_erg=pTfunc->eval(r[i])*k;
- //std::cout<<y<<std::endl;
- result.at(i)=n0*exp(y)*kT_erg0/kT_erg;
- }
- return result;
- }
- };
-}
-
-#endif