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Showing results for tags 'flares'.
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https://www.nature.com/articles/s41598-020-67860-3 "After noticing the correlation between solar proton flux and strong earthquakes, the researchers went on to propose a possible explanation: a mechanism called the reverse piezoelectric effect. Previous experiments have clearly shown that compressing quartz, a rock common in the Earth’s crust, can generate an electrical pulse through a process known as the piezoelectric effect. The researchers think that such small pulses could destabilize faults that are already close to rupturing, triggering earthquakes. In fact, signatures from electromagnetic events — such as earthquake lightning and radio waves — have been recorded occurring alongside earthquakes in the past. Some researchers think these events are caused by the earthquakes themselves. But several other studies have detected strong electromagnetic anomalies before large earthquakes, not after, so the exact nature of the relationship between earthquakes and electromagnetic events is still debated. The new explanation, however, flips this electromagnetic cause-and-effect on its head, suggesting electromagnetic anomalies aren’t the result of earthquakes, but instead cause them. It goes like this: As positively charged protons from the Sun crash into Earth protective magnetic bubble, they create electromagnetic currents that propagate across the globe. Pulses created by these currents could then go on to deform quartz in Earth’s crust, ultimately triggering quakes." https://astronomy.com/news/2020/07/powerful-eruptions-on-the-sun-might-trigger-earthquakes
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This January 10, 2023, a very active sun with beautiful eruptive zones
andre cassese posted a gallery image in The Sun
From the album: refractor 150 mm halpha observatoire Rocbaron
This January 10, 2023, a very active sun with beautiful eruptive zones on an infernal boiling cauldron. 150 mm halpha F/D 8 telescope with double PST standard, 2 x barlow and Apollo IMX 429 camera.© Andre cassese
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- active region
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From the album: Soleil Halpha lunette 120 mm et 80 mm
80 mm Halpha F/D 6.3 refractor with double PST standard and Apollo IMX 429 camera in focus.© Andre cassese
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- halpha soleil
- halpha andre cassese
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