AI Insight
New radio observations suggest that Betelgeuse, a red supergiant star, has a hidden companion star named Siwarha that is disturbing its massive atmosphere. Astronomers believe this smaller companion star is moving through Betelgeuse's extended outer layers, causing detectable disturbances that stretch and distort the supergiant's shape. This discovery could explain some of the unusual behavior previously observed in Betelgeuse.
Why it matters
This finding helps astronomers better understand the complex dynamics of massive stars and their evolution. It may also explain Betelgeuse's mysterious dimming events and irregular behavior that have puzzled scientists, improving our ability to predict the eventual supernova explosion of this nearby star.
Understand the Science
Something mysterious is disturbing Betelgeuse, and astronomers believe they have identified the culprit: a hidden companion star called Siwarha. New radio observations reveal that the smaller star may be plowing through Betelgeuse’s enormous atmosphere, creating disturbances that subtly stretch and distort the red supergiant’s shape.
Source: A hidden star is plowing through Betelgeuse’s atmosphere, new evidence suggests