论文标题
检测太阳大气重力波的新方法
A New Method for Detecting Solar Atmospheric Gravity Waves
论文作者
论文摘要
在地球的大气和海洋，火星和木星以及太阳的大气中都观察到了内部重力波。尽管有充分的证据表明在太阳大气中存在传播重力波，但我们仍然对它们的特征和整体作用并没有充分了解太阳大气的动力学和能量。在这里，我们提出了一种新的方法来研究太阳大气中的重力波的传播。它基于计算在不同高度下测得的垂直速度之间的三维互相关函数。我们将这种新方法应用于由SOHO/MDI和HINODE/HINODE/SOT获得的共同空间和同时多普勒图像的时间序列，以及模拟向上传播重力波数据包的模拟。我们展示了一些初步结果，并概述了未来的发展。
Internal gravity waves have been observed in the Earth's atmosphere and oceans, on Mars and Jupiter, and in the Sun's atmosphere. Despite ample evidence for the existence of propagating gravity waves in the Sun's atmosphere, we still do not have a full understanding of their characteristics and overall role for the dynamics and energetics of the solar atmosphere. Here we present a new approach to study the propagation of gravity waves in the solar atmosphere. It is based on calculating the three-dimensional cross-correlation function between the vertical velocities measured at different heights. We apply this new method to a time series of co-spatial and co-temporal Doppler images obtained by SOHO/MDI and Hinode/SOT as well as to simulations of upward propagating gravity wave packets. We show some preliminary results and outline future developments.
