vice.singlezone.recycling¶
Type : real number or str [case-insensitive]
Default : “continuous”
The cumulative return fraction \(r(t)\). This is the mass fraction of a single stellar population returned to the interstellar medium as gas at the birth metallicity of the stars.
The only allowed string is “continuous” [case-insensitive]. In this case VICE will implement time-dependent recycling from each episode of star formation via a treatment of the stellar initial mass function and the initial-final remnant mass model of Kalirai at al. (2008) [1].
Numbers must be between 0 and 1 (inclusive), and will be interpreted as the instantaneous recycling fraction: the fraction of a stellar population’s mass that is returned to the interstellar medium immediately following its formation.
Note
In the case of instantaneous recycling, it is recommened that users adopt r = 0.4 with the Kroupa [2] IMF and r = 0.2 with the Salpeter [3] IMF based on the findings of Weinberg, Andrews & Freudenburg (2017) [4].
Example Code¶
>>> import vice
>>> sz = vice.singlezone(name = "example", IMF = "kroupa")
>>> sz.recycling = 0.4
>>> sz.IMF = "salpeter"
>>> sz.recycling = 0.2
>>> sz.recycling = "continuous"
