TNPSC Thervupettagam

Lithium in space

April 26 , 2020 1549 days 886 0
  • A team of scientists at the Indian Institute of Astrophysics (IIA) have discovered a number of Lithium rich red giants. 
  • They frame a connection between Lithium in interstellar space and lithium in red giants. 
  • The Lithium rich Helium burning stars also have connections with red giant stars.
  • This discovery indicates that Li is being produced in the stars and accounts for its abundance in the interstellar medium.
  • The study says that the present amount of Lithium found in the Universe is four times that of the primordial value. 
  • Lithium (Li), is one of the three primordial elements, apart from Hydrogen and Helium (He), produced in the big bang nucleosynthesis (BBN).
  • Identifying sources of Li enrichment in our Galaxy has been a great interest to researchers to validate Big Bang Nucleosynthesis.
  • The Big Bang Nucleosynthesis theory predicts that roughly 25% the mass of the Universe consists of Helium.
  • The IIA an autonomous institute under the Department of Science & Technology.

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