MappingsSEDFamily Class Reference

#include <MappingsSEDFamily.hpp>

Inheritance diagram for MappingsSEDFamily:

Public Member Functions
	MappingsSEDFamily (SimulationItem *parent)
double	cdf (Array &lambdav, Array &pv, Array &Pv, const Range &wavelengthRange, const Array &parameters) const override
Range	intrinsicWavelengthRange () const override
vector< SnapshotParameter >	parameterInfo () const override
double	specificLuminosity (double wavelength, const Array &parameters) const override
virtual double	cdf (Array &lambdav, Array &pv, Array &Pv, const Range &wavelengthRange, const Array &parameters) const =0
virtual Range	intrinsicWavelengthRange () const =0
virtual vector< SnapshotParameter >	parameterInfo () const =0
virtual double	specificLuminosity (double wavelength, const Array &parameters) const =0
Public Member Functions inherited from SimulationItem
template<class T >
T *	find (bool setup=true) const
template<class T >
T *	interface (int levels=-999999, bool setup=true) const
virtual string	itemName () const
void	setup ()
string	typeAndName () const
Public Member Functions inherited from Item
	Item (const Item &)=delete
virtual	~Item ()
void	addChild (Item *child)
const vector< Item * > &	children () const
virtual void	clearItemListProperty (const PropertyDef *property)
void	destroyChild (Item *child)
virtual bool	getBoolProperty (const PropertyDef *property) const
virtual vector< double >	getDoubleListProperty (const PropertyDef *property) const
virtual double	getDoubleProperty (const PropertyDef *property) const
virtual string	getEnumProperty (const PropertyDef *property) const
virtual int	getIntProperty (const PropertyDef *property) const
virtual vector< Item * >	getItemListProperty (const PropertyDef *property) const
virtual Item *	getItemProperty (const PropertyDef *property) const
virtual string	getStringProperty (const PropertyDef *property) const
int	getUtilityProperty (string name) const
virtual void	insertIntoItemListProperty (const PropertyDef *property, int index, Item *item)
Item &	operator= (const Item &)=delete
Item *	parent () const
virtual void	removeFromItemListProperty (const PropertyDef *property, int index)
virtual void	setBoolProperty (const PropertyDef *property, bool value)
virtual void	setDoubleListProperty (const PropertyDef *property, vector< double > value)
virtual void	setDoubleProperty (const PropertyDef *property, double value)
virtual void	setEnumProperty (const PropertyDef *property, string value)
virtual void	setIntProperty (const PropertyDef *property, int value)
virtual void	setItemProperty (const PropertyDef *property, Item *item)
virtual void	setStringProperty (const PropertyDef *property, string value)
void	setUtilityProperty (string name, int value)
virtual string	type () const

Protected Member Functions
	MappingsSEDFamily ()
void	setupSelfBefore () override
Protected Member Functions inherited from SEDFamily
	SEDFamily ()
Protected Member Functions inherited from SimulationItem
	SimulationItem ()
virtual bool	offersInterface (const std::type_info &interfaceTypeInfo) const
virtual void	setupSelfAfter ()
virtual void	setupSelfBefore ()
Protected Member Functions inherited from Item
	Item ()

Private Types
using	BaseType = SEDFamily
using	ItemType = MappingsSEDFamily

Private Attributes
StoredTable< 5 >	_table

Friends
class	ItemRegistry

Detailed Description

An instance of the MappingsSEDFamily class represents the family of MAPPINGS III star-forming region template SEDs, parameterized on metallicity, compactness, ISM pressure and PDR covering factor, and scaled by star formation rate, as described by Groves et al. 2008 (ApJS,176,438). The model spectra have 1800 wavelength bins and cover 5 metallicities, 6 compactness parameters, 5 pressure values, and 2 covering factors (0 for pure HII and 1 for 100% PDR).

The SEDs are tabulated over a wavelength range from 1 Angstrom to almost 1 meter with the spectral resolution shown in the figure below.

The data were downloaded from http://www.mpia-hd.mpg.de/~brent/starburst.html -> Cparam_models.save, however it seems that this page/download is no longer available. The contents of the IDL save file were converted to SKIRT stored table format for inclusion as a resource file. The stored table is opened during setup, and it is subsequently interpolated to the desired parameters and wavelength grid when needed.

When imported from a text column file, the properties of the star-forming region represented by this SED family must appear in the following order, and have the specified default units unless these units are overridden by column header info:

$$\dot{M}({\mathrm{M}}_{\odot }{\text{yr}}^{-1})Z(\mathrm{d}\mathrm{i}\mathrm{m}\mathrm{l}\mathrm{e}\mathrm{s}\mathrm{s})\log C(\mathrm{d}\mathrm{i}\mathrm{m}\mathrm{l}\mathrm{e}\mathrm{s}\mathrm{s})p(\mathrm{P}\mathrm{a})f_{\text{PDR}}(\mathrm{d}\mathrm{i}\mathrm{m}\mathrm{l}\mathrm{e}\mathrm{s}\mathrm{s})$$

where $\dot{M}$ is the star formation rate, assumed to be constant over the past 10 Myr, $Z$ is the metallicity, $\log C$ is the logarithm of the compactness, $p$ is the ISM pressure, and $f_{\text{PDR}}$ is the PDR covering factor.

This item type is displayed only if the Boolean expression "Level2" evaluates to true after replacing the names by true or false depending on their presence.

Constructor & Destructor Documentation

MappingsSEDFamily() [1/2]

MappingsSEDFamily::MappingsSEDFamily ( )

inlineprotected

Default constructor for concrete Item subclass MappingsSEDFamily : "a MAPPINGS III SED family for star-forming regions" .

MappingsSEDFamily() [2/2]

MappingsSEDFamily::MappingsSEDFamily ( SimulationItem *  parent )

explicit

This constructor can be invoked programmatically by classes that use a hard-coded SED family (as opposed to selected through the ski file). Before the constructor returns, the newly created object is hooked up as a child to the specified parent in the simulation hierarchy (so it will automatically be deleted), and its setup() function has been called.

Member Function Documentation

cdf()

double MappingsSEDFamily::cdf ( Array &  lambdav, Array &  pv, Array &  Pv, const Range &  wavelengthRange, const Array &  parameters  ) const

overridevirtual

This function constructs both the normalized probability density function (pdf) and the corresponding normalized cumulative distribution function (cdf) for the SED with the specified parameters over the specified wavelength range. The function returns the normalization factor. The number and type of parameters must match the information returned by the parameterInfo() function; if not the behavior is undefined.

Implements SEDFamily.

intrinsicWavelengthRange()

Range MappingsSEDFamily::intrinsicWavelengthRange ( ) const

overridevirtual

This function returns the intrinsic wavelength range of the SED family. It retrieves this range from the underlying stored table.

Implements SEDFamily.

parameterInfo()

vector< SnapshotParameter > MappingsSEDFamily::parameterInfo ( ) const

overridevirtual

This function returns the number and type of parameters used by this particular SED family as a list of SnapshotParameter objects. Each of these objects specifies unit information and a human-readable descripton for the parameter.

Implements SEDFamily.

setupSelfBefore()

void MappingsSEDFamily::setupSelfBefore ( )

overrideprotectedvirtual

This function opens the appropriate resource file (in SKIRT stored table format).

Reimplemented from SimulationItem.

specificLuminosity()

double MappingsSEDFamily::specificLuminosity ( double  wavelength, const Array &  parameters  ) const

overridevirtual

This function returns the specific luminosity $L_{\lambda }$ (i.e. radiative power per unit of wavelength) for the SED with the specified parameters at the specified wavelength, or zero if the wavelength is outside of the SED's intrinsic wavelength range. The number and type of parameters must match the information returned by the parameterInfo() function; if not the behavior is undefined.

Implements SEDFamily.

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

• MappingsSEDFamily.hpp