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Source: The post is based on the article “Deciphering of physical characteristics of a rare class of supernovae hint towards advanced stage of evolution of special class of very hot & massive stars” published in PIB on 8th August 2022.
What is the News?
A team of scientists has deciphered the physical characteristics of a rare class of supernovae called Type Ibn Supernovae (SNe).
What are Supernovae?
Supernovae are a kind of energetic explosions were the core of massive stars (a few times that of mass of our Sun) go to a catastrophic phase of explosion liberating huge amounts of energy.
What is Type Ibn Supernovae(SNe)?
Type Ibn supernovae are a rare class of stripped-envelope supernovae interacting with a helium-rich dense circumstellar medium(CSM).
These SNe are unique and essential because they help to explore the typical density, velocity, and composition of the nearby SN environment.
They are more luminous than normal supernovae(SNe) which are huge stellar explosions releasing a humongous amount of energy.
What are Wolf-Rayet stars?
Wolf-Rayet stars represent a final burst of activity before a huge star begins to die. These stars, which are at least 20 times more massive than the Sun, “live fast and die hard”.
