Kernel for Nroi azimuth angle integration of diffuse model. More...

#include <GCTAResponse_helpers.hpp>

Inheritance diagram for cta_nroi_diffuse_kern_phi:

Public Member Functions
	cta_nroi_diffuse_kern_phi (const GCTAResponseIrf rsp, const GCTAObservation obs, const GModelSpatial model, const GMatrix rot, const GEnergy &srcEng, const GTime &srcTime, const GEnergy &obsEng, const GTime &obsTime, const double &theta, const double &sin_theta)

double	eval (const double &phi)
	Kernel for Nroi azimuth angle integration of diffuse 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 GCTAResponseIrf *	m_rsp
	CTA response. More...

const GCTAObservation *	m_obs
	CTA observation. More...

const GModelSpatial *	m_model
	Spatial model. More...

const GMatrix *	m_rot
	Rotation matrix. More...

GEnergy	m_srcEng
	True photon energy. More...

GTime	m_srcTime
	True photon arrival time. More...

GEnergy	m_obsEng
	Observed photon energy. More...

GTime	m_obsTime
	Observed photon arrival time. More...

double	m_theta
	Offset angle (radians) More...

double	m_cos_theta
	Cosine of offset angle. More...

double	m_sin_theta
	Sine of offset angle. 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 Nroi azimuth angle integration of diffuse model.

This class implements the computation of

\[ S_{\rm p}(\theta, \phi | E, t) \, N_{\rm pred}(\theta, \phi) \]

where

\(S_{\rm p}(\theta, \phi | E, t)\) is the diffuse model,
\(N_{\rm pred}(\theta, \phi)\) is the data space integral of the Instrument Response Function for a point spread function over the Region Of Interest in the reference frame of the diffuse source model
\(\theta\) is the distance from the ROI centre, and
\(\phi\) is the azimuth angle.

Definition at line 986 of file GCTAResponse_helpers.hpp.

Constructor & Destructor Documentation

cta_nroi_diffuse_kern_phi::cta_nroi_diffuse_kern_phi	(	const GCTAResponseIrf *	rsp,
		const GCTAObservation *	obs,
		const GModelSpatial *	model,
		const GMatrix *	rot,
		const GEnergy &	srcEng,
		const GTime &	srcTime,
		const GEnergy &	obsEng,
		const GTime &	obsTime,
		const double &	theta,
		const double &	sin_theta
	)

inline

Definition at line 988 of file GCTAResponse_helpers.hpp.

Member Function Documentation

double cta_nroi_diffuse_kern_phi::eval ( const double & phi )

virtual

Kernel for Nroi azimuth angle integration of diffuse model.

Parameters

[in] phi Azimuth angle with respect to ROI centre (radians).

Computes

\[ S_{\rm p}(\theta, \phi | E, t) \, N_{\rm pred}(\theta, \phi) \]

Todo:: Re-consider formula for possible simplification (dumb matrix multiplication is definitely not the fastest way to do that computation).

Implements GFunction.

Definition at line 1566 of file GCTAResponse_helpers.cpp.

References GSkyDir::celvector(), cos(), GModelSpatial::eval(), gammalib::is_infinite(), gammalib::is_notanumber(), m_cos_theta, m_model, m_obs, m_obsEng, m_obsTime, m_rot, m_rsp, m_sin_theta, m_srcEng, m_srcTime, GCTAResponseIrf::nirf(), and sin().

Member Data Documentation

double cta_nroi_diffuse_kern_phi::m_cos_theta

protected

Cosine of offset angle.

Definition at line 1020 of file GCTAResponse_helpers.hpp.

Referenced by eval().

const GModelSpatial* cta_nroi_diffuse_kern_phi::m_model

protected

Spatial model.

Definition at line 1013 of file GCTAResponse_helpers.hpp.

Referenced by eval().

const GCTAObservation* cta_nroi_diffuse_kern_phi::m_obs

protected

CTA observation.

Definition at line 1012 of file GCTAResponse_helpers.hpp.

Referenced by eval().

GEnergy cta_nroi_diffuse_kern_phi::m_obsEng

protected

Observed photon energy.

Definition at line 1017 of file GCTAResponse_helpers.hpp.

Referenced by eval().

GTime cta_nroi_diffuse_kern_phi::m_obsTime

protected

Observed photon arrival time.

Definition at line 1018 of file GCTAResponse_helpers.hpp.

Referenced by eval().

const GMatrix* cta_nroi_diffuse_kern_phi::m_rot

protected

Rotation matrix.

Definition at line 1014 of file GCTAResponse_helpers.hpp.

Referenced by eval().

const GCTAResponseIrf* cta_nroi_diffuse_kern_phi::m_rsp

protected

CTA response.

Definition at line 1011 of file GCTAResponse_helpers.hpp.

Referenced by eval().

double cta_nroi_diffuse_kern_phi::m_sin_theta

protected

Sine of offset angle.

Definition at line 1021 of file GCTAResponse_helpers.hpp.

Referenced by eval().

GEnergy cta_nroi_diffuse_kern_phi::m_srcEng

protected

True photon energy.

Definition at line 1015 of file GCTAResponse_helpers.hpp.

Referenced by eval().

GTime cta_nroi_diffuse_kern_phi::m_srcTime

protected

True photon arrival time.

Definition at line 1016 of file GCTAResponse_helpers.hpp.

Referenced by eval().

double cta_nroi_diffuse_kern_phi::m_theta

protected

Offset angle (radians)

Definition at line 1019 of file GCTAResponse_helpers.hpp.

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