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New Solar Telescope Unveils the Complex Dynamics of Sunspots' Dark Cores 17

An anonymous reader writes: The high-resolution images, taken by the New Solar Telescope (NST), show the atmosphere above the umbrae (the dark patches in the center of sunspots) to be finely structured, consisting of hot plasma intermixed with cool plasma jets as wide as 100 kilometers. These ground breaking images are being captured by scientists at NJIT's Big Bear Solar Observatory (BBSO). Sunspots are formed when strong magnetic fields rise up from the convection zone, a region beneath the photosphere that transfers energy from the interior of the Sun to its surface. At the surface, the magnetic fields concentrate into bundles, which prevent the hot rising plasma from reaching the surface. This energy deficit causes the magnetic bundles to cool down to temperatures about 1,000 degrees lower than their surroundings. The NST takes snapshots of the Sun every 10 seconds, which are then strung together as a video to reveal fast-evolving small explosions, plasma flows and the movement of magnetic fields.
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New Solar Telescope Unveils the Complex Dynamics of Sunspots' Dark Cores

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  • Does anybody have a link to the video that they mention in the article?

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