Fraser Cain on Nostr: One of the puzzling mysteries of Betelgeuse is the observation that it's rotating ...
One of the puzzling mysteries of Betelgeuse is the observation that it's rotating surprisingly fast for a supergiant star. Even though it stretches out to the orbit of Jupiter, its surface appears to be rotating at five km/s - that's fast. A new simulation shows that the star might have a surface boiling so furiously that it mimics rapid rotation. Convective bubbles as large as Earth's orbit can rise and fall on its surface at 30 km/s.
https://www.mpa-garching.mpg.de/1094283/hl202403 
Published at
2024-03-02 00:57:03Event JSON
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"content": "One of the puzzling mysteries of Betelgeuse is the observation that it's rotating surprisingly fast for a supergiant star. Even though it stretches out to the orbit of Jupiter, its surface appears to be rotating at five km/s - that's fast. A new simulation shows that the star might have a surface boiling so furiously that it mimics rapid rotation. Convective bubbles as large as Earth's orbit can rise and fall on its surface at 30 km/s.\n\nhttps://www.mpa-garching.mpg.de/1094283/hl202403\n\nhttps://m.universetoday.com/system/media_attachments/files/112/023/373/300/231/446/original/ec9a00687b772c86.jpg",
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