Astronomers may have solved the mystery of Betelgeuse’s strange diminished brightness.
In the fall of 2019 Betelgeuse One of the brightest and most famous stars in the sky — has begun to darken dramatically. By February 2020, about two-thirds of normal luminosity had been lost.
Betelgeuse forming the shoulders of Orion (Hunter) is a bloated red supergiant star that will die in a violent supernova explosion in the relatively near future. As such, some astronomers speculated that this “great dimming” was the beginning of Betelgeuse’s death tragedy, and that the stars could soon become a boom.
“Our results confirm that Great Dimming does not indicate an imminent explosion of Betelgeuse. Supernova, ”Montalges and his colleagues wrote: New research, Was published online in Nature today (June 16th).
However, “some red supergiants may show little or no signs of an imminent core collapse years or weeks before it happens,” they added. “Therefore, Betelgeuse’s current mass loss behavior does not seem to foresee its end, but it remains possible to explode without warning.”
The new research could be applied not only to understanding Betelgeuse, which is about 720 light-years away from Earth, but also to calculating its distance. Change a little), Astronomer Emily Levesque wrote in the accompanying “News and Views” section of the same issue of Nature.
“This elaborate and detailed study of Betelgeuse’s unexpected behavior lays the foundation for characterizing the entire population of stars,” writes Levesque, based at the University of Washington. “Next-generation facilities focused on monitoring star brightness over time and studying the dust characteristics of the star’s infrared spectrum are very much to extend the lessons learned here. It turns out to be valuable. “
Mike Wall says “there“(Grand Central Publishing, 2018; illustrated by Karl Tate), a book on the exploration of alien life. Follow him on Twitter @ michaeldwall. Follow him on Twitter @ Spacedotcom or Facebook.
Why one of the brightest stars in the sky mysteriously began to dim
Source link Why one of the brightest stars in the sky mysteriously began to dim