Four Indian Astronomers, Together with International Scientists, Track Rare Supernova Explosion | India News

NEW DELHI: A team of four Indian astronomers, along with international collaborators, have tracked a rare supernova explosion and landed one of the hottest stars known as the Wolf-Rayet star. (WR star), which is a thousand times highly luminous objects. Of the sun
The WR star is a very massive star and draws an outer envelope of hydrogen, which is involved in the fusion of helium and other elements in a large core. Tracing some of the large fluorescent supernova explosions could help detect these stars that remain a mystery to scientists from around the world.
Four Indian scientists from the Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, an independent institute under the Department of Science & Technology, and 16 scientists from institutions in the US, UK, Canada, Ireland, Italy, Sweden and Korea. Optical investigations were performed on an envelope-like supernova called SN 2015dj hosted in the Galaxy NGC 7371.They calculated the mass of the collapsed star to become the supernova and the ejection geometry. Scientists also found that the original star was a combination of two stars – one of which was a large WR star and the other a much smaller star than the Sun.
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Mridweeka Singh, from South Korea, who was part of ARIES when the supernova was discovered, said: “This supernova was discovered in 2015. We have observed the supernova for up to 170 days since its discovery. We later submitted the manuscript in February of last year and received a response on January 22nd this year. The material is now online and is being published. ”
Mridweeka, who moved to South Korea in 2019 after leaving the institute and is working for the Korea Institute of Astronomy and Space Science, said.

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, “SN 2015dj is an Ib-type supernova originating in a binary system with a mass between 13 and 20 M_sun. The geometry of the explosion is symmetrical for this supernova.” The team’s details were recently published in ‘The Astrophysical Journal’.
A supernova (SNe) is a powerful explosion in the universe that emits massive amounts of energy. Long-term investigations of these periods open the door to understand the nature of the exploding star as well as its explosive properties. It can also help identify the number of massive stars.
Long-term investigations of these periods open the door to understand the nature of the exploding star as well as its explosive properties. It can also help identify the number of massive stars.