Some of the world’s fastest computers have predicted the state of the atmosphere of the Sun. And it was predicted five days in advance with unprecedented accuracy. The simulation can help forecast hazardous magnetic storms around the Earth better.
In events called coronal mass ejections, clouds of gas escape from the Sun, and this can damage the satellites largely, knocking the Earth’s power grids out. The Sun’s storms also risk astronauts with radiation hazard.
Thus, predicting them in advance can help scientists take measures against the damages in may cause. To do this accurately, researchers have devised a sophisticated computer model based on magnetic activity’s observations on the Sun’s surface, or photosphere. The team is led by Zoran Mikic of the company Science Applications International in San Diego, California, US.
This activity shapes the Sun’s corona - the wispy outer atmosphere — where the eruptions of gas originate. The new model is expected to have successfully predicted the entire corona’s shape when was visible in the solar eclipse of 29 March 2006. Besides this, the model could also help understand the Sun deeper, — such as solving the mystics like how its powerful magnetic field is generated.
Via: New Scientist
Supercomputer simulates the corona's shape of the Sun
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