For the first time, a group of astronomers has succeeded in observing and analyzing the explosion of a red giant star with a relatively long period of time. Supernova SN 2020tlf occurs differently from similar eruptions and suggests that at least some of the red giant planets are undergoing dangerous developments before their end, which is somehow a harbinger. Until now, it had always been determined later that the exploding red giants behaved relatively calmly in front of them and there was nothing to indicate that the end was near. On the other hand, the SN 2020tlf eruption was announced by massive radiation, which allowed real-time monitoring from the start.
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A red giant is a star that has reached the end of its life. It is much bigger than the Sun, but above all it is bigger than our star. The most famous is Betelgeuse in the constellation Orion. Two years ago, an unexpected change in the star’s brightness led to speculation about whether its end was closer than long thought. Meanwhile, the changes have been explained by different processes and it is also assumed that the end of the supernova is only imminent in the astronomical period of time.
Shocking note
Like the Wynn Jacobson-Galán group of the University of California Now explainedThe dying star SN 2020tlf was discovered in summer 2020 by the Pan-STARRS instrument. At the Haleakala volcano (Hawaii), among others, searched for variable stars and discovered in the summer of 2020 that a large amount of radiation was emitted from the red giant. It is about 120 million light years from Earth and about ten to twelve times the mass of the Sun. In the fall of 2020, he appeared in a supernova. The team recorded flashes of light and collected the spectrum. It turns out that the explosion likely dumped the same material that the star had ejected earlier.
The last 130 days and subsequent explosions from distant stars were observed using instruments at the WM Keck Observatory on Mauna Kea. Astronomer Raffaella Margotti compared this to looking at a time bomb. The team concluded that, contrary to previous assumptions, at least some of the red giants had to undergo major changes before their violent end, signaling a supernova. Theories about this must now be reviewed, and additional observations could help determine exactly what happened before a massive stellar explosion. research work SN 2020tlf is published in the special Astrophysical Journal.
Artist’s impression of the Pioneer and Type II supernova
(bln)
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