The solar crown, which during the last complete eclipse was regarded as a gentle glowing ring around the star, is actually a glow of glow plasma that it changes from the magnetic field of the Sun and releases bursts of charged particles known assunny wind ", that can interfere Extensive Systems communications (in satellites, radio and GPS) on Earth. That's why scientists are trying to predict as accurately as possible the changing structure of this outer part of the solar atmosphere.
Most of the time the solar crown is invisible due to the brightness of the inner layers of the Sun, so solar eclipses are valuable opportunities to study this spatial phenomenon.
Thus, a group of researchers from Predictive Science Inc., a California-based computing physics research firm and the National Science Foundation and the Air Force Research Service, prepared to benefit from the full solar eclipse observed in South America on July 2.
They used the Pleiades supercomputer of NASA's expanded NASA supercomputer unit at the Ames Research Center at the Silicon Valley (CA) agency – and data from the NASA Solar Dynamics Observatory (SDO, acronym in Spanish). English) to predict the appearance of the solar crown during the last eclipse.
In the image resulting from forecasts published a week before this phenomenon, you can see the solar crown with two broad arrows and nebulae on the opposite sides.
After the complete eclipse, they compared their forecast with the actual appearance of the solar crown on July 2. Although his hypothesis was not entirely accurate, the researchers were very close.
"I'm excited," says NASA's statement to Cooper's Downs on Predictive Science. "The sun co-operated and the styrimers were in the right place … Of course, as a scientist, I'm already analyzing the details that we're wrong with and where we can improve," he said. "But it's nice to see that there will be scientific quality measurements that we can compare in detail and learn a lot from this comparison," he added.
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