Radio data suggest Siwarha shapes Betelgeuse’s atmosphere
BROBROK News · Based on reporting by DiarioBitcoin ·
Radio observations collected from 2021 to 2026 show changes in Betelgeuse’s extended atmosphere that are consistent with the influence of its companion, Siwarha. The companion was not detected directly; its presence is inferred from the star’s changing shape.
Key points
- VLA and ALMA observations covered 2021 through 2026.
- The atmosphere looks more elongated when Siwarha is farther away.
- It appears more rounded when the companion passes in front of or behind the star.
- Siwarha orbits so closely that it crosses Betelgeuse’s extended atmosphere.
- The data do not prove that Siwarha caused the 2020 Great Dimming.
Why it matters
The findings offer an indirect way to study a very faint companion through its effect on a giant star’s atmosphere. That helps researchers understand tightly bound stellar systems and the behavior of evolved red supergiants.
Original headline: “Betelgeuse muestra la huella de Siwarha en su atmósfera”
Read the original on DiarioBitcoin
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