Describes a singular isothermal ellipse. More...
#include <sielens.h>
Inheritance diagram for grale::SIELens:
Collaboration diagram for grale::SIELens:
Additional Inherited Members | |
 Public Types inherited from grale::GravitationalLens | |
| enum | LensType { Gaussian, MultiplePlummers, Plummer, Pointmass, SIS, NSIE, NSIS, SIE, Square, MultipleSquares, MultipleGaussians, MassSheet, Composite, MassDisk, Profile, PolynomialMassProfile, MultipleWendland, DeflectionGrid, NFW, EllipticNFW, Sersic, EllipticSersic } |
| Specific lens types. More... | |
| Public Member Functions inherited from grale::GravitationalLens | |
| LensType | getLensType () const |
| Returns the type of the lens. | |
| virtual bool | init (double D_d, const GravitationalLensParams *pLensParams=0) |
Initializes the lens with parameters params, setting its angular diameter distance to D_d. | |
| bool | traceTheta (double D_s, double D_ds, Vector2D< double > theta, Vector2D< double > *pBeta) const |
| Calculates the result of the lens equation. | |
| virtual double | getInverseMagnification (double D_s, double D_ds, Vector2D< double > theta) const |
| Returns the inverse magnification factor for a specific direction. | |
| double | getLensDistance () const |
| Returns the D_d parameter used in the GravitationalLens::init function. | |
| void | setLensDistance (double D_d) |
| Changes the lens distance. | |
| const GravitationalLensParams * | getLensParameters () const |
| Returns a pointer to a copy of the lens parameters used in the GravitationalLens::init function. | |
| virtual void | setDerivativeAngularDistanceScale (double distanceScale) |
| Sets a distance scale to be used when estimating the derivatives of the function beta(theta) numerically. | |
| bool | write (serut::SerializationInterface &si) const |
| Writes the current lens to a serut::SerializationInterface instance. | |
| bool | save (const std::string &fileName) const |
| Writes the current lens to a file. | |
| GravitationalLens * | createCopy () const |
| Creates a copy of the current lens instance. | |
| Static Public Member Functions inherited from grale::GravitationalLens | |
| static double | getInverseMagnification (double D_s, double D_ds, double axx, double ayy, double axy) |
| Calculate inverse magnification from derivatives of deflection angle. | |
| static void | getShearInfo (double D_s, double D_ds, double axx, double ayy, double axy, double *pShearAngle, double *pShearSize) |
| Calculate shear size and angle from derivatives of the deflection angle. | |
| static void | getShearInfo (double gamma1, double gamma2, double *pShearAngle, double *pShearSize) |
| Calculate shear size and angle from shear components. | |
| static bool | read (serut::SerializationInterface &si, GravitationalLens **pLens, std::string &errorString) |
Reads a lens instance from a serut::SerializationInterface object and stores the lens in lens; an error message is stored in errstr if the function is not successful. | |
| static bool | load (const std::string &fileName, GravitationalLens **pLens, std::string &errorString) |
Loads a lens instance from a file and stores the lens in lens. | |
| Protected Member Functions inherited from grale::GravitationalLens | |
| GravitationalLens (LensType t) | |
| Meant to be used by a specific lens implementation. | |
Detailed Description
![\[ \Sigma(\vec{\theta}) = \frac{\sigma_v^2\sqrt{f}}{2 G D_d\sqrt{\theta_x^2+f^2\theta_y^2}} \]](form_36.png)
![\[ \vec{\hat{\alpha}}(\vec{\theta}) = \frac{4 \pi \sigma_v^2}{c^2} \frac{\sqrt{f}}{\sqrt{1-f^2}} \left[ \mathrm{asinh}\left(\frac{\sqrt{1-f^2}}{f}\frac{\theta_x}{|\vec{\theta}|}\right)\vec{e}_x + \mathrm{asin}\left(\sqrt{1-f^2}\frac{\theta_y}{|\vec{\theta}|}\right)\vec{e}_y \right] \]](form_37.png)
The documentation for this class was generated from the following file:
- src/lens/sielens.h
