The National Aeronautics and Space Administration (NASA) has discovered a new explanation about the seismic activity.
This seismic activity takes place on the Sun during solar flares. It is known as a sunquake.
Earlier, the magnetic forces or heating of the outer atmosphere was believed to be responsible for it.
Based on the data provided by the Solar Dynamics Observatory of NASA, a new study claims that sunquakes take place due to the lurks beneath the surface of the Sun.
According to NASA, Sunquakes “release acoustic energy in the form of waves that ripple along the Sun’s surface, like waves on a lake, in the minutes following a solar flare – an outburst of light, energy, and material seen in the Sun’s outer atmosphere”.
A sunquake was observed with usual sharp ripples by the SDO in July 2011. These ripples were produced by somewhat average flare. The scientist tracked these waves using helioseismic holography.
As a result, it was found that the acoustic source of these sunquakes lies nearly 700 miles (1126.5 km) below the Sun’s surface.
This new finding outdates what used to believe by the scientists some time ago. The results of the study have been published in the journal Astrophysical Journal Letters.
Notably, the scientist can’t say it firmly say about the reason behind the sunquakes. The space agency NASA said that it would look at sunquakes to find the exact reason behind them.