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The SKIRT project
advanced radiative transfer for astrophysics
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The SKIRT project
advanced radiative transfer for astrophysics
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#include <BpassSEDFamily.hpp>
Public Member Functions | |
| BpassSEDFamily (SimulationItem *parent) | |
| double | cdf (Array &lambdav, Array &pv, Array &Pv, const Range &wavelengthRange, const Array ¶meters) const override |
| Range | intrinsicWavelengthRange () const override |
| vector< SnapshotParameter > | parameterInfo () const override |
| double | specificLuminosity (double wavelength, const Array ¶meters) const override |
| virtual double | cdf (Array &lambdav, Array &pv, Array &Pv, const Range &wavelengthRange, const Array ¶meters) const =0 |
| virtual Range | intrinsicWavelengthRange () const =0 |
| virtual vector< SnapshotParameter > | parameterInfo () const =0 |
| virtual double | specificLuminosity (double wavelength, const Array ¶meters) 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 | |
| BpassSEDFamily () | |
| 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 = BpassSEDFamily |
Private Attributes | |
| StoredTable< 3 > | _table |
Friends | |
| class | ItemRegistry |
An instance of the BpassSEDFamily class represents a BPASS family of single stellar population (SSP) SED templates (Eldridge, Stanway et al, 2017, PASA 34, 58; Stanway and Eldridge, 2018, MNRAS, 479, 75). We use the BPASS data release version 2.2.1 (July 2018) of the model that includes binary stellar systems and that assumes a Chabrier IMF with an upper mass limit of 300 solar masses (the "bin-imf_chab300" model).
The SED templates are parametrized on metallicity (1e-5 - 0.04) and age (1 Myr - 100 Gyr), and scale with the initial mass of the SSP. The wavelength grid has a resolution of 1 Angstrom over the complete range (1 Angstrom - 10 micron). This corresponds to a spectral resolution as shown in the figure below.
The data were downloaded from the BPASS web site at https://bpass.auckland.ac.nz/9.html and converted to SKIRT stored table format for inclusion in the optional BPASS resource pack. 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 parameters for this SED family must appear in the following order in the specified default units (unless these units are overridden by column header info):
\[ M_\mathrm{init}\,(\mathrm{M}_\odot) \quad Z\,(\mathrm{dimensionless}) \quad t\,(\mathrm{yr}) \]
IMPORTANT NOTE TO THE USER
Because of its substantial size (450 MB compressed) the resource file required by this class is contained in a separate, optional resource pack, which can be installed by running the downloadResources.sh shell script in the SKIRT git directory or can be obtained from the download page on the SKIRT web site.
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inlineprotected |
Default constructor for concrete Item subclass BpassSEDFamily : "a BPASS SED family for single stellar populations" .
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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.
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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.
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overridevirtual |
This function returns the intrinsic wavelength range of the SED family. It retrieves this range from the underlying stored table.
Implements SEDFamily.
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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.
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overrideprotectedvirtual |
This function opens the appropriate resource file (in SKIRT stored table format).
Reimplemented from SimulationItem.
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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.