Solar Oscillations
Solar Oscillations
In the quiet Sun the most prominent structure is granulation. The image shows the example of it. One bubble is approximately size of the Spain.(Detailed explanation)
The dark paths in the image are called intergranular lanes. In them the turbulent downflow of the plasma is relatively strong, so the observed transient, oscillation can be detected above them. (Detailed explanation)
Those oscillations are thought to be involved in the supply of the energy necessary to heat the upper layers of the atmosphere. (Detailed explanation)
The active parts of the Sun are also source of the oscillations; the most prominent one. Sunspots are known to host some of the most dynamic phenomena in the lower solar atmosphere. These include umbral flashes (UF), umbral oscillations, running penumbral waves and Evershed flows. (Detailed explanation)