论文标题
由于通量传输模型产生的磁场引起的热震参数的变化
Variations of helioseismic parameters due to magnetic field generated by a flux transport model
论文作者
论文摘要
在太阳周期期间，在对流的底部发现了声速的变化，可用于约束太阳能内部磁场。我们的目的是检查太阳能发电机产生的磁场是否可以导致通过HelioseScology检测到的声速的循环变化。通过使用Babcock-Leighton（BL）型通量传输发电机获得太阳内部磁场的基本配置。我们通过吸收由已建立的发电机产生的磁场并检查其对结构变量的影响来重建一维太阳能模型。结果表明，发电机产生的磁场能够在太阳周期内引起对流区底部的声速曲线的明显变化。该理论预测的详细特征也通过调整发电机模型的自由参数来与太阳周期23中的Helioseiscic结果相似。
The change of sound speed has been found at the base of the convection during the solar cycles, which can be used to constrain the solar internal magnetic field. We aim to check whether the magnetic field generated by the solar dynamo can lead to the cyclic variation of the sound speed detected through helioseismology. The basic configuration of magnetic field in the solar interior was obtained by using a Babcock-Leighton (BL) type flux transport dynamo. We reconstructed one-dimensional solar models by assimilating magnetic field generated by an established dynamo and examined their influences on the structural variables. The results show that magnetic field generated by the dynamo is able to cause noticeable change of the sound speed profile at the base of the convective zone during a solar cycle. Detailed features of this theoretical prediction are also similar to those of the helioseismic results in solar cycle 23 by adjusting the free parameters of the dynamo model.
