Call Us Now

+91 9606900005 / 04

For Enquiry

legacyiasacademy@gmail.com

Astronomical Transients

Context:

Recently, the Indian-American astronomer Shrinivas Kulkarni was awarded the Shaw Prize for Astronomy in 2024 for his work on the physics of astronomical transients.

Relevance:

Facts for Prelims

Astronomical Transients

Definition:

  • Astronomical Transients: Celestial objects whose brightness changes over short periods.
Significance:
  • Nature of Transients: All astronomical transients involve some degree of violent phenomena.
  • Purpose of Study: Understanding transients helps astronomers learn about the origins of their violence and provides insights into non-transient events.
Examples of Transients:

Supernovae:

  • Mechanism: The outer layers of massive stars explode while their cores collapse due to exhaustion of nuclear fuel.
  • Brightness: Can emit light more intensely than the combined light of all stars in their host galaxy.

Active Galactic Nucleus (AGN):

  • Components: Host supermassive black holes at the centers of massive galaxies.
  • Behavior: These black holes consume surrounding matter, causing the matter to gain energy and emit varying levels of brightness.
Fast Radio Bursts (FRB):
  • Discovery: First identified in 2007.
  • Energy Emission: Can release more than ten times the energy of the Sun within a few milliseconds.

-Source: The Hindu


 

June 2024
MTWTFSS
 12
3456789
10111213141516
17181920212223
24252627282930
Categories