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model_galactic_center_diffractive_scattering_screen Class Reference
Blurs the visibilities of the input model according to the diffractive scattering kernel with default values from Johnson 2018. More...
#include "model/model_galactic_center_diffractive_scattering_screen.h"
Inheritance diagram for model_galactic_center_diffractive_scattering_screen:
Collaboration diagram for model_galactic_center_diffractive_scattering_screen:
Classes | |
class | _P_phi |
Wandering magnetic field angular model. More... | |
Public Member Functions | |
model_galactic_center_diffractive_scattering_screen (model_visibility_amplitude &model, double frequency=230e9, std::string scattering_model="dipole", double observer_screen_distance=2.82 *3.086e21, double source_screen_distance=5.53 *3.086e21, double theta_maj_mas_cm=1.38, double theta_min_ma_cm=0.703, double POS_ANG=81.9, double scatt_alpha=1.38, double r_in=800e5, double r_out=1e20) | |
virtual size_t | size () const |
Size of the supplied model image, i.e., number of parameters expected. | |
virtual void | generate_model (std::vector< double > parameters) |
Takes model parameters and generates the model with the diffractive scattering. | |
virtual double | visibility_amplitude (datum_visibility_amplitude &d, double accuracy) |
Redefines the visibility amplitude function since we need to multiply by the scattering kernel. | |
virtual void | set_mpi_communicator (MPI_Comm comm) |
Sets the mpi communicator for generating images. | |
Private Member Functions | |
double | Dphi (double r, double phi) const |
< Dphi function for the ensemble averaged image. More... | |
double | Q (double qx, double qy) const |
Private Attributes | |
model_visibility_amplitude & | _model |
< Model visibility amplitudes | |
const double | _wavelength |
const std::string | _scattering_model |
Which scattering model to use. Have three options, dipole, boxcar, vonMises. | |
const double | _theta_maj_mas_cm |
const double | _theta_min_mas_cm |
Semi-major and minor axis length of Gaussian component of scattering screen in mas at refernce wavelength of 1 cm. | |
const double | _phi0 |
(90-_POS_ANG) | |
const double | _M |
Magnification factor. | |
const double | _scatt_alpha |
Scattering turulence and dissipation scale power law parameter. Kolmogorov scattering has alpha=5/3. | |
const double | _rin |
Inner scale for the turbulence in the scattering screen. | |
double | _zeta0 |
double | _Qbar |
Power spectrum normalization. | |
double | _C_scatt_0 |
Scattering coefficent for phase structure function. | |
double | _kZeta |
Scattering kernel phase structure coefficient for different wandering magnetic field models. | |
double | _Bmaj |
double | _Bmin |
_P_phi | _P_phi_func |
Normalization for wandering magnetic field model. | |
double | _P_phi_norm |
Additional Inherited Members | |
Protected Attributes inherited from model_visibility_amplitude | |
MPI_Comm | _comm |
Detailed Description
- Date
- Aug. 2019
Unlike the refractive scattering screen this does not increase the number of parameters since this is considered a deterministic process.
Member Function Documentation
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private |
Power spectrum of phase screen.
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The documentation for this class was generated from the following files: