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December 16: Quasi Periodic Pulsations

     
  December 16: Quasi Periodic Pulsations  
  Quasi Periodic Pulsations  
 

 

Click on the above image for a link to a paper describing the event

 

 
  Thanks to the high performance of its innovative detectors, LYRA can measure the light coming from the Sun in the (extreme) ultra-violet at an unprecedented cadence: we can take measurement every 50 milliseconds! This high cadence allows the scientists to analyze very fast changes occurring on the Sun. One example is the quasi-periodic oscillations with periods below 20 seconds that have been observed during the rising phase of some solar flares. What produces those oscillations? A few hypotheses have been proposed, but at the moment, scientists are still debating their origin. To learn more about these quasi-periodic oscillations, click here.