Image Details
Caption: Figure 2.
Location in parameter space (Bu and σ) of the different simulations and the Sun. Cases 1 and 2 have the same Bu and σ, but different Raf (see Table 1). The viscous and radiative spreading regimes are separated at σ = σc ≈ 10 for the simulations or σ = σc ≈ 35 for the present-day Sun (see Appendix F).
© 2026. The Author(s). Published by the American Astronomical Society.