New Source Of Gravitational Waves Detected

New Source Of Gravitational Waves Detected
Source : The Hindu
Science and Technology

What is discuss under New Source Of Gravitational Waves Detected ?

1. What is a Gravitational Wave ?
2. About New Source Of Gravitational Waves 

Why in News ?

Scientists have for the first time detected gravitational waves ripples in the fabric of space-time produced by the collision of a neutron star and a black hole.

Key Facts

• The finding confirms that there are systems consisting of a neutron star and a black hole.

  

• It will help answer many questions about the cosmos, from star formation to the expansion rate of our universe.
• What is a Gravitational Wave ?
  • Gravitational waves are produced when celestial objects collide and the ensuing energy creates ripples in the fabric of space-time which carry all the way to detectors on Earth.
  • The reverberations from the two celestial objects were picked up using a global network of gravitational wave detectors, the most sensitive scientific instruments ever built.
  • This is the first time scientists have seen gravitational waves from a neutron star and a black hole.
• These detection confirm that there are populations of binary systems consisting of a neutron star and a black hole.
• The first ever direct detection of gravitational waves in 2015.
• Astronomers have predicted that this type of system a black hole and neutron star merger could exist, but without any compelling observational evidence.

Daily Current Affairs : Click Here