Coriolis force acting on near-surface horizontal flows during simulations of flux emergence produces a tilt angle consistent with Joy’s law on the Sun

Open Access

Fig. 10.

Separation of polarities for the non-rotational simulation (blue) and the rotational simulation (red). We show the geometric separation without a B_z threshold (solid curves, Δx_g) and the separation expected from the flows (Eqs. (11) and (12); dashed curves, Δx_f). The vertical line at 6 hours is close to the time when most of the magnetic flux has emerged (see Fig. 6).

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