On the Sun discovered huge tornado


30/03/2012

Solar tornado, several times larger than the size of the Earth, have been found in the solar atmosphere, say researchers from the United Kingdom. Solar tornadoes were opened Solar Dynamics Observatory. Video tornado was presented at the National Astronomy Meeting 2012 in Manchester.

"This is perhaps the first such large-scale solar tornado filmed on video. Previously, much smaller solar tornadoes were opened satellite SOHO. But they were not recorded on video," - said Dr. Xing Li from Aberistuitskogo University.

Dr. Hugh Morgan, one of the pioneers of solar tornado, added: "This is a unique and delicious tornado plays a role in the origin of solar storms."

Observatory recorded overheated gases, the temperature of which was in the range 50,000 - 2,000,000 Kelvin. They went from the root protrusion called dense protuberance and left high in the atmosphere, 200 moving at 000 kilometers spiral path for at least three hours.

The rate of hot gases tornado reaches 300 000 kilometers per hour. For comparison, the rate of terrestrial tornadoes can reach 150 kilometers per hour.

Tornadoes often originate at the source of coronal mass ejections. Upon reaching Earth, these coronal mass ejections can cause significant damage to the near-Earth satellites and even damage the power grid.

Solar tornado carried away by the spiral magnetic field and electric currents in the upper layers of the atmosphere. It is quite possible that the magnetic fields and currents play a key role in the onset of coronal mass ejections.

Solar Dynamics Observatory, launched in February 2010. The satellite orbits the Earth in a circular, geostationary orbit at an altitude of 36,000 kilometers. He is responsible for monitoring solar activity, in order to better understand the reasons of it processes and the development of forecasting tools changes taking place there.

Original: Physorg.com


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