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

#include <GCTAResponse_helpers.hpp>

Inheritance diagram for cta_psf_diffuse_kern_delta:

Public Member Functions
	cta_psf_diffuse_kern_delta (const GCTAResponseCube rsp, const GModelSpatial model, const GMatrix *rot, const GSkyDir &srcDir, const GEnergy &srcEng, const GTime &srcTime, const int &min_iter, const int &max_iter, const double &resolution)

double	eval (const double &delta)
	Kernel for PSF integration of spatial 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 GModelSpatial *	m_model
	Spatial model. More...

const GMatrix *	m_rot
	Rotation matrix. More...

GSkyDir	m_srcDir
	True photon arrival direction. More...

GEnergy	m_srcEng
	True photon energy. More...

GTime	m_srcTime
	True photon arrival time. More...

int	m_min_iter
	Minimum number of Romberg iterations. More...

int	m_max_iter
	Maximum number of Romberg iterations. More...

double	m_resolution
	Spatial map resolution. More...

double	m_psf_max
	Maximum PSF value. 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 1337 of file GCTAResponse_helpers.hpp.

Constructor & Destructor Documentation

cta_psf_diffuse_kern_delta::cta_psf_diffuse_kern_delta	(	const GCTAResponseCube *	rsp,
		const GModelSpatial *	model,
		const GMatrix *	rot,
		const GSkyDir &	srcDir,
		const GEnergy &	srcEng,
		const GTime &	srcTime,
		const int &	min_iter,
		const int &	max_iter,
		const double &	resolution
	)

inline

Definition at line 1339 of file GCTAResponse_helpers.hpp.

Member Function Documentation

double cta_psf_diffuse_kern_delta::eval ( const double & delta )

virtual

Kernel for PSF integration of spatial model.

Parameters

[in] delta PSF offset angle (radians).

Returns: Azimuthally integrated product between PSF and model.

Computes the azimuthally integrated product of point spread function and the spatial 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 spatial 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 2244 of file GCTAResponse_helpers.cpp.

References cos(), GIntegral::fixed_iter(), gammalib::is_infinite(), gammalib::is_notanumber(), gammalib::iter_phi(), m_max_iter, m_min_iter, m_model, m_resolution, m_rot, m_rsp, m_srcDir, m_srcEng, m_srcTime, GCTAResponseCube::psf(), GIntegral::romberg(), sin(), and gammalib::twopi.

Member Data Documentation

int cta_psf_diffuse_kern_delta::m_max_iter

protected

Maximum number of Romberg iterations.

Definition at line 1367 of file GCTAResponse_helpers.hpp.

Referenced by eval().

int cta_psf_diffuse_kern_delta::m_min_iter

protected

Minimum number of Romberg iterations.

Definition at line 1366 of file GCTAResponse_helpers.hpp.

Referenced by eval().

const GModelSpatial* cta_psf_diffuse_kern_delta::m_model

protected

Spatial model.

Definition at line 1361 of file GCTAResponse_helpers.hpp.

Referenced by eval().

double cta_psf_diffuse_kern_delta::m_psf_max

protected

Maximum PSF value.

Definition at line 1369 of file GCTAResponse_helpers.hpp.

double cta_psf_diffuse_kern_delta::m_resolution

protected

Spatial map resolution.

Definition at line 1368 of file GCTAResponse_helpers.hpp.

Referenced by eval().

const GMatrix* cta_psf_diffuse_kern_delta::m_rot

protected

Rotation matrix.

Definition at line 1362 of file GCTAResponse_helpers.hpp.

Referenced by eval().

const GCTAResponseCube* cta_psf_diffuse_kern_delta::m_rsp

protected

Response cube.

Definition at line 1360 of file GCTAResponse_helpers.hpp.

Referenced by eval().

GSkyDir cta_psf_diffuse_kern_delta::m_srcDir

protected

True photon arrival direction.

Definition at line 1363 of file GCTAResponse_helpers.hpp.

Referenced by eval().

GEnergy cta_psf_diffuse_kern_delta::m_srcEng

protected

True photon energy.

Definition at line 1364 of file GCTAResponse_helpers.hpp.

Referenced by eval().

GTime cta_psf_diffuse_kern_delta::m_srcTime

protected

True photon arrival time.

Definition at line 1365 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