Kernel for Psf delta angle integration used for stacked analysis. More...

#include <GCTAResponse_helpers.hpp>

Inheritance diagram for cta_psf_radial_kern_delta:

Public Member Functions
	cta_psf_radial_kern_delta (const GCTAResponseCube rsp, const GModelSpatialRadial model, const GSkyDir &srcDir, const GEnergy &srcEng, const GTime &srcTime, const double &delta_mod, const double &theta_max, const int &iter)

double	eval (const double &delta)
	Kernel for PSF integration of radial model. More...

Public Member Functions inherited from GFunction
	GFunction (void)
	Void constructor. More...

	GFunction (const GFunction &function)
	Copy constructor. More...

virtual	~GFunction (void)
	Destructor. More...

GFunction &	operator= (const GFunction &function)
	Assignment operator. More...

Protected Attributes
const GCTAResponseCube *	m_rsp
	Response cube. More...

const GModelSpatialRadial *	m_model
	Radial model. More...

GSkyDir	m_srcDir
	True photon arrival direction. More...

GEnergy	m_srcEng
	True photon energy. More...

GTime	m_srcTime
	True photon arrival time. More...

double	m_delta_mod
	Distance of model from Psf. More...

double	m_cos_delta_mod
	Cosine of m_delta_mod. More...

double	m_sin_delta_mod
	Sine of m_delta_mod. More...

double	m_theta_max
	Maximum model radius. More...

double	m_cos_theta_max
	Cosine of m_theta_max. More...

int	m_iter
	Integration iterations. More...

Additional Inherited Members
Protected Member Functions inherited from GFunction
void	init_members (void)
	Initialise class members. More...

void	copy_members (const GFunction &function)
	Copy class members. More...

void	free_members (void)
	Delete class members. More...

Detailed Description

Kernel for Psf delta angle integration used for stacked analysis.

Definition at line 1139 of file GCTAResponse_helpers.hpp.

Constructor & Destructor Documentation

cta_psf_radial_kern_delta::cta_psf_radial_kern_delta	(	const GCTAResponseCube *	rsp,
		const GModelSpatialRadial *	model,
		const GSkyDir &	srcDir,
		const GEnergy &	srcEng,
		const GTime &	srcTime,
		const double &	delta_mod,
		const double &	theta_max,
		const int &	iter
	)

inline

Definition at line 1141 of file GCTAResponse_helpers.hpp.

Member Function Documentation

double cta_psf_radial_kern_delta::eval ( const double & delta )

virtual

Kernel for PSF integration of radial model.

Parameters

[in] delta PSF offset angle (radians).

Returns: Azimuthally integrated product between PSF and radial model.

Computes the azimuthally integrated product of point spread function and the radial model intensity. As the PSF is azimuthally symmetric, it is not included in the azimuthally integration, but just multiplied on the azimuthally integrated model. The method returns thus

\[ {\rm PSF}(\delta) \times \int_0^{2\pi} {\rm M}(\delta, \phi) \sin \delta {\rm d}\phi \]

where \({\rm M}(\delta, \phi)\) is the radial model in the coordinate system of the point spread function, defined by the angle \(\delta\) between the true and the measured photon direction and the azimuth angle \(\phi\) around the measured photon direction.

Implements GFunction.

Definition at line 1818 of file GCTAResponse_helpers.cpp.

References cos(), GIntegral::fixed_iter(), gammalib::is_infinite(), gammalib::is_notanumber(), m_cos_delta_mod, m_cos_theta_max, m_delta_mod, m_iter, m_model, m_rsp, m_sin_delta_mod, m_srcDir, m_srcEng, m_srcTime, m_theta_max, GCTAResponseCube::psf(), gammalib::roi_arclength(), GIntegral::romberg(), and sin().

Member Data Documentation

double cta_psf_radial_kern_delta::m_cos_delta_mod

protected

Cosine of m_delta_mod.

Definition at line 1168 of file GCTAResponse_helpers.hpp.

Referenced by eval().

double cta_psf_radial_kern_delta::m_cos_theta_max

protected

Cosine of m_theta_max.

Definition at line 1171 of file GCTAResponse_helpers.hpp.

Referenced by eval().

double cta_psf_radial_kern_delta::m_delta_mod

protected

Distance of model from Psf.

Definition at line 1167 of file GCTAResponse_helpers.hpp.

Referenced by eval().

int cta_psf_radial_kern_delta::m_iter

protected

Integration iterations.

Definition at line 1172 of file GCTAResponse_helpers.hpp.

Referenced by eval().

const GModelSpatialRadial* cta_psf_radial_kern_delta::m_model

protected

Radial model.

Definition at line 1163 of file GCTAResponse_helpers.hpp.

Referenced by eval().

const GCTAResponseCube* cta_psf_radial_kern_delta::m_rsp

protected

Response cube.

Definition at line 1162 of file GCTAResponse_helpers.hpp.

Referenced by eval().

double cta_psf_radial_kern_delta::m_sin_delta_mod

protected

Sine of m_delta_mod.

Definition at line 1169 of file GCTAResponse_helpers.hpp.

Referenced by eval().

GSkyDir cta_psf_radial_kern_delta::m_srcDir

protected

True photon arrival direction.

Definition at line 1164 of file GCTAResponse_helpers.hpp.

Referenced by eval().

GEnergy cta_psf_radial_kern_delta::m_srcEng

protected

True photon energy.

Definition at line 1165 of file GCTAResponse_helpers.hpp.

Referenced by eval().

GTime cta_psf_radial_kern_delta::m_srcTime

protected

True photon arrival time.

Definition at line 1166 of file GCTAResponse_helpers.hpp.

Referenced by eval().

double cta_psf_radial_kern_delta::m_theta_max

protected

Maximum model radius.

Definition at line 1170 of file GCTAResponse_helpers.hpp.

Referenced by eval().

The documentation for this class was generated from the following files:

inst/cta/src/GCTAResponse_helpers.hpp
inst/cta/src/GCTAResponse_helpers.cpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation