Fig. 3.
Theoretical birthlines for various values of f. The green track is the birthline used in the present grid, with f given by Eq. (3). The brown tracks are birthlines with constant f = 1/3 and 1/11, from Haemmerlé et al. (2016). The switching point of Eq. (3) is indicated by a black square. Other lines and points are identical to Fig. 1.
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