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Coronal Loops

All articles tagged with #coronal loops

Inouye Solar Telescope Captures Record-Breaking Solar Flare Details
science6 months ago

Inouye Solar Telescope Captures Record-Breaking Solar Flare Details

The Daniel F. Inouye Solar Telescope has captured the smallest magnetic loops ever seen in the sun's corona, revealing details that could help understand the mechanisms behind solar flares. These tiny loops, some as narrow as 13 miles, were observed during a powerful X-class flare, providing new insights into solar magnetic activity. However, funding cuts threaten the telescope's future, risking loss of valuable solar research and expertise.

Unraveling the Mysteries of Violent 'Superflares' on Ultra-Bright Stars
space-science2 years ago

Unraveling the Mysteries of Violent 'Superflares' on Ultra-Bright Stars

Scientists have used solar flares as a proxy to study the physics behind massive and violent "superflares" that occur on stars thousands of times brighter than the sun. By applying what they have learned about solar flares to other stars, researchers were able to identify the underlying physical mechanisms driving these superflares. They found that the presence of coronal loops, massive hoops of plasma following magnetic field lines, could explain the observed "peak bump" in the light curves of distant stars. Computer simulations showed that these loops would increase in density and contribute to visible light emissions, resulting in a distinct secondary emission peak. The team also found that the late-time "bump" flaring of light in distant stars' spectra is caused by super-hot plasma cooling down and falling back to the star, heating up the atmosphere in the process.