论文标题
磁制动指数变化会影响陀螺的年龄吗？
Can gyrochronological ages be affected by the variation of the magnetic braking index?
论文作者
论文摘要
目前的工作试图分析解释惯性时刻的影响，即$ i $，这是由于主要序列恒星中恒星速度的演变而引起的。我们发现，可以从$ΔQ$表示的磁制动指数的变化中估计与恒星涂抹相关的效果。我们还发现，在这里，$ \ dot {i} $的效果是理解在这个进化阶段控制恒星旋转的微妙机制的决定因素。我们注意到，我们的模型预测，当恒星密度降低时，制动指数变化的行为是不同的。在本研究中，我们使用了来自不同卫星的档案中的三个样本恒星目标，例如Corot和\ textit {Kepler}，以估计从我们的模型和恒星年龄中提取的参数之间的可能相关性。结果，我们发现$ΔQ$与恒星年龄密切相关。总之，我们建议，由于涂抹性而引起的磁制动指数的变化可能是一种有趣的方法来估计出色的年龄。
The present work attempts to analytically explain the effects on the moment of inertia, $I$, caused by the evolution of stellar velocity in main-sequence stars. We have found that the effects linked to stellar oblateness can be estimated from the variation of the magnetic braking index denoted by $Δq$. We have also found that the effect of $\dot{I}$ is here a determining factor for understanding the delicate mechanisms that control the spin-down of stars in this evolutionary phase. We note that our models predict that the behaviour of the variations of the braking index is distinct when the star density decreases. In the present study, we used three sample stellar targets from the archives of the different satellites, such as CoRoT and \textit{Kepler}, to estimate the possible correlations among the parameters extracted from our model and the stellar age. As a result, we find that $Δq$ is strongly correlated to the age of stars. In conclusion, we suggest that the variations of the magnetic braking index due to oblateness can be an interesting way to estimate stellar ages.
