SourceSersic Class Reference

Class for sources described by a Sersic profile. More...

#include <sersic_source.h>

Inherits SourceColored.

Public Member Functions
	SourceSersic ()
	sets values to invalid values More...
	SourceSersic (double my_mag, double my_Reff, double my_PA, double my_index, double my_q, double my_z, double my_zeropoint)
	SourceSersic (double my_mag, Band band, double my_zeropoint, double my_Reff, double my_PA, double my_index, double my_q, double my_z)
	SourceSersic (const SourceSersic &p)
SourceSersic &	operator= (const SourceSersic &p)
void	ReSet (PosType mag, Band band, PosType Reff, PosType PA, PosType my_index, PosType my_q, PosType my_z, const PosType *theta=0)
	Reset parameters but not the magnitude. More...
PosType	FractionRadius (PosType f)
	calculates radius where the surface brightness drops by a factor f with respect to the central peak in radians
PosType	getSersicIndex () const
PosType	getAxesRatio () const
PosType	getReff () const
	in arcseconds
PosType	getPA () const
void	setSersicIndex (PosType x)
void	setAxesRatio (PosType x)
void	setReff (PosType x)
void	setPA (PosType x)
void	rotate (PosType theta)
PosType	SurfaceBrightness (const PosType *x) const
void	printSource ()

Detailed Description

Class for sources described by a Sersic profile.

The sources are constructed from magnitude, half light radius Reff, Sersic index, axis ratio q and main axis orientation PA. For q = 1, the source is circular and the surface brightness profile is I(r) = Ieff * exp(-bn*((r/Reff)^(1/index)-1)) The elliptical model is defined for axis ratio q < 1.

Constructor & Destructor Documentation

SourceSersic() [1/3]

SourceSersic::SourceSersic

(

)

sets values to invalid values

set to values that hopefully will cause an error if it is used

SourceSersic() [2/3]

SourceSersic::SourceSersic	(	double	my_mag,
		double	my_Reff,
		double	my_PA,
		double	my_index,
		double	my_q,
		double	my_z,
		double	my_zeropoint
	)

Parameters

my_mag	Total magnitude
my_Reff	Bulge half light radius (arcs)
my_PA	Position angle (radians)
my_index	Sersic index
my_q	axes ratio
my_z	redshift
my_zeropoint	magnitude zero point

SourceSersic() [3/3]

SourceSersic::SourceSersic	(	double	my_mag,
		Band	band,
		double	my_zeropoint,
		double	my_Reff,
		double	my_PA,
		double	my_index,
		double	my_q,
		double	my_z
	)

Parameters

my_mag	Total magnitude
my_zeropoint	zeropoint
my_Reff	Bulge half light radius (arcs)
my_PA	Position angle (radians)
my_index	Sersic index
my_q	axes ratio
my_z	redshift

Member Function Documentation

ReSet()

void SourceSersic::ReSet	(	PosType	mag,
		Band	band,
		PosType	Reff,
		PosType	PA,
		PosType	my_index,
		PosType	my_q,
		PosType	my_z,
		const PosType *	theta = 0
	)

Reset parameters but not the magnitude.

Parameters

mag	Total magnitude
Reff	Bulge half light radius (arcs)
PA	Position angle (radians)
my_index	Sersic index
my_q	axes ratio
my_z	redshift
theta	optional angular position on the sky

SurfaceBrightness()

PosType SourceSersic::SurfaceBrightness ( const PosType *  y ) const

virtual

Surface brightness of source in grid coordinates not source centered coordinates.

The units shuld be ergs / s / Hz / cm^2

Implements Source.

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

• SLsimLib/include/sersic_source.h
• SLsimLib/Source/sersic.cpp