Saturday , September 18 2021

Exactly astronomers have discovered an extremely old and anemic star in the universe – science



Astronomers have recently spotted one of the oldest stars of the red giant, called SMSS J160540.18-144323.1, which is only 35,000 light-years from our Earth. This stellar discovery was made by an astronomer, Dr. Thomas Nordlander, ARC Center for Excellence in 3-D Astrophysics (ASTRO 3D), which detected an extremely low amount of iron in a star located around the edge of the Milky Way halo, Obviously this "anemic star" consists of an iron content of only one part 50 billion less than the sun.

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Observations of the star indicate that the star belonged to the second generation of stars, after which the universe exploded, about 13.8 billion years ago. Astronomers have confirmed the discovery of the star in a document published in Monthly Newsletter of the Royal Astronomical Society: Letters, Dr. Norlander collaborates with other colleagues from Australia, the US and Europe and locates the star using a special SkyMapper telescope at the Siding Spring Observatory in NSW.

Researchers have suggested that the star formed after one of the first stars exploded, which was only ten times more massive than the Sun. The star was found to have exploded only slightly (astronomically), where much of these heavy elements created in the supernova fell back into the residual neutron star left behind.

"The good news is that we can study the first stars through their children – the stars that came after them, like the one we found," said Prof. Martin Asplund, ASTRO 3D Principal Investigator at ANU.


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