The SKIRT project
advanced radiative transfer for astrophysics
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< SnapshotParameterparameterInfo () const override
double specificLuminosity (double wavelength, const Array &parameters) const override
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 ItemgetItemProperty (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)
Itemoperator= (const Item &)=delete
Itemparent () 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 ()
Protected Member Functions inherited from Item
 Item ()

Private Types

using BaseType
using ItemType

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:

\[ \dot{M}\,(\mathrm{M}_\odot\,{\text{yr}}^{-1}) \quad Z\,(\mathrm{dimless}) \quad \log C\,(\mathrm{dimless}) \quad p\,(\mathrm{Pa}) \quad f_{\text{PDR}}\,(\mathrm{dimless}) \]

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.


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