Sign In
Learn bits
Science & Tech.
Pradeep Kumar

01/07/21 11:45 AM IST

Probing stellar evolution

In news

Rebel behavior of highest energy afterglow of a Gamma-Ray Burst detected in space may help probe stellar evolution

Highlights
  • The emission from the most notable Gamma-Ray Burst (GRB) explosion so far traced -- the afterglow from a galaxy 4.5 billion light-years away was found to be complex in nature and did not follow the evolution expected in standard afterglow models.
  • The detection of high energy photons (TeV Photons) from this GRB provides new insights and important clues to unravel the underlying physical processes at work which result in such explosions.
  • The GRB with ultra-high energy photons called GRB 190114C was detected for the first time on 14-January-2019.
  • The optical observations of the afterglow from GRB 190114C were carried out with the Growth India Telescope (GIT), Himalayan Chandra Telescope (HCT)
  • Detailed modeling of the afterglow using multi-band data indicates that the parameters describing the fraction of energy in electron population and magnetic field are evolving with time and not constant as generally seen in GRBs.
  • The scientists suggested that the evolution of these parameters, at early times, may play a role in producing the bright TeV emission.
Source: PIB

More Related Current Affairs View All

20 Feb

The Maharashtra Protection of Interest of Depositors (in Financial Establishments) Act, 1999

'Investors who were defrauded in the Torres Ponzi scam may receive about Rs 40 crore over the next six months.' The Mumbai Police’s Economic Offences Wing (EOW) has begun

Read More

18 Feb

Aravali safari park project

'The Haryana government’s ambitious 3,858 hectare Aravali safari park project spread across Gurugram and Nuh — which was one of the poll promises of the ruling Bharatiy

Read More

17 Feb

President’s rule function

'Recently,  four days after Manipur Chief Minister N. Biren Singh’s resignation, the Union government announced that President’s rule has been implemented in the v

Read More

India’s First Ai-Driven Magazine Generator

Generate Your Custom Current Affairs Magazine using our AI in just 3 steps