Stellar Population Selectors

Class providing selectors for stellar populations—algorithms that choose the appropriate stellarPopulationClass object to associate with a star formation event given the current star formation rate, the component metallicity, and the galaxy component. Different implementations may always return the same (fixed) stellar population, or may select a metal-poor population at low metallicities to represent Population III stars or a starburst population at high star formation rates, allowing heterogeneous stellar populations within a single galaxy.

Default implementation: stellarPopulationSelectorFixed

Methods

select → class(stellarPopulationClass)

Return the appropriate stellarPopulationClass object for a star formation event given the current star formation rate, the elemental abundances of the fuel, and the galaxy component type (disk, spheroid, etc.).

• double precision , intent(in ) :: rateStarFormation

• type (abundances ), intent(in ) :: abundances_

• class (nodeComponent), intent(in ) :: component

isStarFormationRateDependent → logical

Return true if the selection of stellar population is dependent on star formation rate.

stellarPopulationSelectorDiskSpheroid

A stellar population selector class which selects a different population for disks and spheroids, irrespective of other physical conditions. The populations to use are specified by the [stellarPopulationDisk] and [stellarPopulationSpheroid] parameters.

stellarPopulationSelectorFixed

A stellar population selector class which selects a fixed population irrespective of physical conditions.

(Default implementation)