TNPSC Thervupettagam

Production of lithium in stars

July 13 , 2020 1471 days 821 0
  • The question regarding the production of lithium in stars has been solved by Indian researchers.
  • Stars actually destroy lithium as they evolve into red giants.
  • Planets were known to have more lithium than their stars.
  • However, some stars were found that were lithium-rich.
  • When stars grow beyond their Red Giant stage it is known as the Red Clump stage.
  • Here they produce lithium.
  • It is known as a Helium Flash.
  • The study also challenges the present understanding of nucleosynthesis in stars.
  • The Big Bang Nucleosynthesis theory predicts that roughly 25% the mass of the Universe consists of Helium.
  • The present abundance of lithium in the universe is only four times the original (Big Bang) value.
  • Lithium is commonly used today in communication device technology.
  • It was first produced in the Big Bang, around 13.7 billion years ago when the universe came into being, along with other elements.

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