vice.toolkit.J21_sf_law.present_day_molecular¶
Type : float
Default : 2
The star formation efficiency timescale of molecular gas at the
present day, in Gyr. Scales with time according to a power-law whose
index is given by teh value of the attribute molecular_index. Must
be positive.
Note
In the interstellar medium and star formation literature, this quantity is more often referred to as the depletion time due to star formation. Default value is chosen based on the results of Leroy et al. (2008) [1].
Example Code¶
>>> import vice
>>> mw = vice.milkyway(name = "example")
>>> mw.zones[0].tau_star.present_day_molecular
2.0
>>> for i in range(mw.n_zones):
>>> mw.zones[i].tau_star.present_day_molecular = 1.0
>>> mw.zones[0].tau_star.present_day_molecular
1.0
