One of the biggest stars in the universe is to undergo an abnormal rapid transformation and may soon explode like a supernova, astronomical physicist. They shared their conclusions in the article on Conse -square's Prprint server.
The first time classified in 1981, one of the biggest red color of the WOH G64 red game is known as about 160,000 light -years from the earth in a large cloud of Magellan, a small galaxy of the band. Galaxy. These large cold stars, ending with hydrogen fuel in the nucleus, burning a shell from the surrounding gas.
It is believed that WOH G64 is about 1500 times higher than the sun, but it is quite unstable and lost weight faster than any other famous red supergian. Now it turns out the changes that the star experience, much more dramatic.
Data analysis from a very large VLT telescope and Magellan telescope in Chile, scientists found that the red light spectrum with a clear signature of titanium oxide is crap, and railways and railways and Nickel began to appear in it. This means that the temperature growth is from about 3,000 to 4500 ° C.
According to Alzeste Bonanos from the Athen National Observatory, the star changed a lot that “one of our fake coins said:” Wait, do I observe the wrong star?
But it was the same star, she said, “This is the first sign that something is happening there.”
Unfortunately, the observations are not done continuously and the exact time of the conversion process has not been known, but it is clear that it occurs in a literal sense in a problem for many years – the time of astronomy eye. Now WOH G64 is about twice smaller than the previous size and its red light is nearly a hundred times brighter than before.
The researchers propose some processes. First, Woh G64 has turned from a red superman into a more calm yellow superman between 2009 and 2016, most likely in 2014. Theoretically, scientists allow a variable to turn a variable Change that – but they never saw it, as they said, lived.
Second, they believe that the star wind torn off the outer layers from the giant. This may be an omen of the rapid explosion of a super neo or interaction with another star, if we think that Woh G64 is really part of the double system. This is a most likely option, because there are very difficult signatures in the spectrum to explain the characteristics of yellow hypergigant.
We know that something is happening, and what Woh G64 has done is unstable, that lost in such speed! But we did not expect this to happen throughout our lives. To grasp this in a really great action, acknowledged Jacco van lun from Kile University in the UK, who had this star image, received the first detailed image of a dying light in one one. Other galaxies.
Observations with VLT for the death of a star in real time will continue within a year, Bonanos guaranteed.
