Solar Orbiter detects rapid magnetic waves in suns polar regions
A team led by researchers at Peking University used Solar Orbiter data from September 2021 to find high-frequency magnetic waves in the suns polar coronal holes.
New imaging reveals fast solar wind origins
Scientists previously struggled to understand how particles gain speed in polar coronal holes. Older instruments like NASA's Solar Dynamics Observatory took pictures every 12 seconds with lower resolution. The new findings come from a paper published recently in the journal National Science Review.
Upgraded equipment captures higher frequency signals
The Solar Orbiter Extreme Ultraviolet Imager records an image every five seconds instead of twelve. This upgrade provides details down to 420 kilometers per pixel compared to earlier tools. The automated magnetic wave-tracking program analyzed data from both instruments together.
Discovery explains particle acceleration mechanisms
The research suggests these rapid waves provide the extra kick needed for fast solar wind. Previous technology could not see these specific high-frequency signals in the polar regions. The team believes this answers long-standing questions about magnetic highway function.
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