NASAのインスタグラム(nasa) - 10月1日 11時01分

Mega Flares from a Mini Star: On April 23, our Swift satellite detected the strongest, hottest, and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star. The initial blast from this record-setting series of explosions was as much as 10,000 times more powerful than the largest solar flare ever recorded.

DG CVn, a binary consisting of two red dwarf stars shown here in an artist's rendering, unleashed a series of powerful flares seen by Swift. At its peak, the initial flare was brighter in X-rays than the combined light from both stars at all wavelengths under typical conditions.

Image Credit: NASA's Goddard Space Flight Center/S. Wiessinger

#nasa #sun #solarflare #stars #xray #swift #reddwarf #science

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