\label{tab:tab1}

\label{clumps}

M Zone \({\mathrm{H}_{\mathrm{P}}}\) \({\langle{{v}_{c}}\rangle}\) \(\Delta M_{\rm conv}\)1 \(\Delta M_{\rm top}\)2 \(N_{\rm cells}\)3 \(\tau_{\rm turn}\)4 \(\tau_{\rm conv}\)5 \( \dot{M}\)
\({\,\mathrm{M}_\odot}\) \({\,{\rm R}_\odot}\) km s\(^{-1}\) \({\,\mathrm{M}_\odot}\) \({\,\mathrm{M}_\odot}\) days days \({\,\mathrm{M}_\odot}\rm{ yr}^{-1}\)
20 He 0.025 0.08 \(7.6\times10^{-9}\) \(1.9\times10^{-9}\) \(1.8\times10^{5}\) 2.5 38 \(7.3\times10^{-8} \)
20 Fe 0.08 2.40 \(3.6\times10^{-6}\) \(5.8\times10^{-7}\) \(1.8\times10^{4}\) 0.25 18250 \(7.3\times10^{-8}\)
60 Fe 0.24 2.25 \(1.6\times10^{-5}\) \(9.8\times10^{-7}\) \(8.5\times10^{3}\) 0.83 1570 \(3.7\times10^{-6}\)

  1. Mass contained in the convective region.

  2. Mass in the radiative layer between the stellar surface and the upper boundary of the convective zone.

  3. Expected number of convective cells, \(N_{\rm cells}:= (R_{\star}/H_{\rm P})^2\).

  4. Convective turnover time, \(\tau_{\rm turn}:= H_{\rm P}/{\langle{{v}_{c}}\rangle}\).

  5. Time that a piece of stellar material spends inside a convective region, \(\tau_{\rm conv}:= \Delta M_{\rm conv}/\dot M\).