Tech News

The Secret of Betelgeuse’s Depression

In December 2019, astronomers saw a strange disappearance, strangely lit from light Betelgeuse, the brightest star in the Orion constellation. They were amazed at this wonder and wondered if it was a sign that the star was about to go to the supernova. A few months later, he reduced the two descriptions: a short cooler moment in the star’s (like the sun), or dust that makes the star lighter for viewers on Earth. Now we have our answer, according to new paper published in the newspaper Nature. Dust is the main cause, but it is connected with the temporary outflow of cold temperatures.

As Ars’ John Timmer was reported last yearBetelgeuse is one of the largest stars in the universe, almost 700 light years. It is an old star that has reached the point where it shines a reddish-expanding redness, with only the heat having a gravitational pull on its outer colors. The star has something in common with the heartbeat, though very calm and consistent. Over time, a star passes through a period in which its surface expands and then sets in motion.

One of these practices is permanent, taking more than five years to complete. Placing on this type is a short, uncommon process that takes anywhere from a year to 1.5 years to complete. Although it is relatively easy to follow with ground-based telescopes, these changes do not cause major changes in astronomical observations that can cause changes that are noticeable during a short period of time.

By the end of 2019, Betelgeuse had become so self-centered that the difference became apparent. The decline continued, declining and shining by 35% in mid-October, before relocating in April 2020.

Telescopes pointing at the giant were able to detect that – instead of a drop, a uniform of light – a decrease in Betelgeuse it was distributed equally, giving the star an unmistakable, striking appearance when viewed from Earth. This raised many questions about what happened to the giant, with some experts suggesting that due to Betelgeuse’s growth and aging, these strange practices were a sign of supernova in production.

By mid-2020, astronomers changed their music. An international team of viewers found it Hubble Space Telescope pointed at Betelgeuse before, during, and after the reduction. In addition to the temporary low visibility, this UV showed that a large burp that formed a cloud of dust near the star probably caused the star to darken.

“With Hubble, we can see things as they leave the surface of the star and move in the sky, the pre-formed dust that made the star appear,” Said Andrea Dupree, an astronomer at the Harvard-Smithsonian Center for Astrophysics who made this statement. He is also the author of a new paper.

Photo: M. Montargès et al./ESO

Source link

Related Articles

Leave a Reply

Back to top button