A group of nearly how many astronomers, under the banner of Indian Pulsar Timing Array, have provided a clear evidence of unexpected changes in a millisecond radio pulsar using the upgraded Giant Metrewave Radio Telescope (uGMRT)?

A group of nearly how many astronomers, under the banner of Indian Pulsar Timing Array, have provided a clear evidence of unexpected changes in a millisecond radio pulsar using the upgraded Giant Metrewave Radio Telescope (uGMRT)? Correct Answer 40

The correct answer is 40.

Key Points

• A group of nearly 40 astronomers, under the banner of Indian Pulsar Timing Array, have provided a clear evidence of unexpected changes in a millisecond radio pulsar using the upgraded Giant Metrewave Radio Telescope (uGMRT).
• Millisecond pulsars are exotic objects in the sky and are used in efforts for detecting ultra-low frequency gravitational waves due to their extreme stable behaviour.

Important Points

• ​Pulsars (PULSAting Radio Stars) are ultra-dense dead stars that act as celestial lighthouses with a radio flash once every rotation of the star.
• This flashing radio signal, or pulse, has unmatched stability in periods and shapes.
• The stable shape of their pulses is regarded as their fingerprints and is crucial to extract their clock-like pulse ticks very precisely.