标题： 包含$^7$锂和$^3$氦约束的一致太阳模型 显示英文标题

标题： Consistent Solar Models Including the $^7$Li and $^3$He Constraints

摘要： 由日震学带来的改进表明，在太阳模型中不能忽略微观扩散。 现在通常在计算中引入氦和金属的扩散。 然而，它们无法解释观测到的锂消耗。 需要宏观运动将核消耗物质带到对流层。 这些运动也导致模型中的声速与从地震模式反演得出的声速之间有更好的一致性。 另一方面，它们不能将太多的$^3$氦带到上面，因为我们现在已经知道，在过去的3Gyr中，$^3$氦/$^4$氦比值的变化不超过10%。 在这里，我们提出了满足$^3$氦约束的新一致太阳模型。 事实上，$^3$氦必须保持不变，而$^7$锂必须被消耗，这导致了对太阳对流层下方允许的有效宏观扩散系数的强烈限制。 显示英文摘要

摘要： Improvements induced by helioseismology show that microscopic diffusion cannot be neglected in solar models. Helium and metal diffusion is now generally introduced in the computations. They cannot however explain the observed lithium depletion. Macroscopic motions are needed to bring up to the convection zone the nuclearly depleted matter. Such motions also lead to a better agreement between the sound velocity in the model and that deduced from the inversion of seismic modes. On the other hand, they must not bring up too much $^3$He, as we now know that the $^3$He/$^4$He ratio cannot have changed by more than 10 percent during these last 3 Gyr. Here we present new consistent solar models in which the $^3$He constraint is satisfied. The fact that $^3$He must remain constant while $^7$Li must be depleted leads to strong constraints on the effective macroscopic diffusion coefficient allowed below the solar convection zone.