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

17 Sep

Reasons Behind the heavy rain in Uttarakhand, Himachal

'Dehradun and several other districts in Uttarakhand have experienced very heavy rainfall over the past few days, triggering landslides in multiple areas and causing rivers to swel

Read More

08 Sep

Rajasthan’s coaching centre Bill

'The Rajasthan Coaching Centres (Control and Regulation) Bill, 2025, is a significant piece of legislation passed by the Rajasthan Assembly to regulate and oversee the state's burg

Read More

28 Aug

IADT-1

'Recently, the Indian Space Research Organisation (ISRO) successfully carried out its first Integrated Air Drop Test (IADT-1), a crucial milestone in the preparation for the countr

Read More

India’s First Ai-Driven Magazine Generator

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