论文标题
识别太阳对流区中的惯性模式
Identification of inertial modes in the solar convection zone
论文作者
论文摘要
太阳中全局声波（P模式）的观察是揭示其内部结构和动力学的关键。已经观察到和鉴定了另一种称为部门罗斯比模式的波浪，这有可能为通过P模式的Heliose术学探测无法访问的内部过程打开大门。还观察到了另一组波，是逆行逆转，赤道的抗对称涡度波，但它们的鉴定仍然难以捉摸。在这里，通过作为特征值问题实施的数值模型，我们提供了支持这些波的识别作为一类惯性本征码的证据，与Rossby模式类别不同，其径向速度与对流区域深处相当，但与水平速度相比仍然很小。我们还建议，最近的观察数据可能存在类似Tesseral样的Rossby模式的签名。
The observation of global acoustic waves (p modes) in the Sun has been key to unveiling its internal structure and dynamics. A different kind of wave, known as sectoral Rossby modes, have been observed and identified, which potentially opens the door to probing internal processes that are inaccessible through p mode helioseismology. Yet another set of waves, appearing as retrograde-propagating, equatorially antisymmetric vorticity waves, have also been observed but their identification remained elusive. Here, through a numerical model implemented as an eigenvalue problem, we provide evidence supporting the identification of those waves as a class of inertial eigenmodes, distinct from the Rossby mode class, with radial velocities comparable to the horizontal ones deep in the convective zone, but still small compared to the horizontal velocities towards the surface. We also suggest that the signature of tesseral-like Rossby modes might be present in the recent observational data.
