huge explosion in The space Scientists help solve the mystery behind a ‘very rare’ starHe praised the results as “very important”.
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for the first time in the world, international team of scientists He discovered evidence of a “massive explosion” that destroyed a “fast spinning, highly magnetic star.”
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They say hacking gives clues Around The reason is that there is an unusually high concentration of metallic elements in another ancient galaxy star.
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The eruption, known as a “gyromagnetic hypernova”, occurred about a billion years after the Great Bang.
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According to experts, it was ten times more active than a supernova – the very bright and powerful explosion of a star..
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From Unfortunately Research papertitled Elements of ‘r-operation of’ magnetism excessive“, Posted yesterday (7th of July) in the magazine nature.
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It was led by researchers from the Australian National University (ANU), along with members of the ARC Center of Excellence in All Astrophysics in Three Dimensions (ASTRO 3D).
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a press release from ANU The 13-billion-year-old star, called SMSS J200322.54-114203.3, said it contained larger amounts of zinc, uranium and europium than the first stars in the universe composed mainly of hydrogen and helium.
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Dr. David Young, van de ANU Research School of Astronomy and Astrophysics, zei:: “We have calculated that J200322.54-114203.3 was formed 13 billion years ago from a chemical soup containing the remains of this type of Hypernoa.
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“No one has ever discovered this phenomenon before.
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“It’s a very rare star, and the fact that it contains much greater than expected amounts of some of the heavier elements means it’s even rarer — a real needle in a haystack.”
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Nobel laureate and vice chancellor of the Australian National University Professor Brian Schmidt, a co-author of the study, added: “The high abundance of zinc is a sure sign of hypernova, a very active supernova.”
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Researchers had previously been unable to explain why the star contained such high levels of metal.
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Associate Professor Chiaki Kobayashi of the University of Hertfordshire in the United Kingdom, He said: “The extra quantities of these items had to come from somewhere.
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“Now, for the first time, we have found observational evidence that points directly to another type of hypernova that produces all stable elements in the periodic table at the same time — an explosion in the collapsing core of a rapidly rotating, massive star that is highly magnetized. anything that explains the results.”
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Simon Murphy of the University of New South Wales Canberra – One of the team of astronomers who used the 2.3-meter ANU telescope to observe hundreds of potentially mineral-poor stars identified by the SkyMapper Telescope’s Southern Sky Survey – said a star’s ‘chemical fingerprint’ can give us a lot of information tell about that age and the environment in which you were born.
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He said: “The absence of heavy elements in its atmosphere tells us that this star is very old, but that it is abundant in some heavy elements such as zinc, uranium and europium.
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“This fingerprint is a sign that it is made of gas enriched by the explosion of an extremely massive, highly magnetized, rapidly spinning star, more powerful than a supernova, a so-called ‘spin-magnetic hypernova’.”
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“This is the first time we’ve seen the chemical signature of such a massive explosion, and we hope it will provide new theoretical work to understand these powerful yet mysterious things.”
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ASTRO 3D“This is a very important discovery that reveals a new avenue for heavy element formation in the baby universe,” added Lisa Kewley, director and ANU professor.
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