Dehradun.INPTA, a joint association of Indian and Japanese astronomers from several prestigious institutions including the Indian Institute of Technology (IIT) Roorkee, has detected unprecedented changes in radio pulsars with the help of a versatile, sensitive, and advanced Giant Meter wave Radio Telescope (UGMRT). have put.INPTA or Indian Pulsar Timing Array has also been included in the International Pulsar Timing Array (IPTA) consortium this year.
The goal of this international cooperation organization is to capture nanohertz gravitational waves that have been far from catching. According to a release issued by IIT Roorkee here, one of the main attractions of the universe is a pulsar (pulsating radio stars) very dense dead stars that appear as a celestial lighthouse with a radio flash on each star's rotation. This glowing radio signal or pulse shows unmatched stability in terms of duration and size.
The steady shape of their pulse is seen as a 'fingerprint' and is critical to obtaining a fine and precise pulse tick like a clock. Measuring this tick of time for a group of pulsars is essential for the transient detection of nanohertz gravitational waves. In order to detect nanohertz gravitational waves, the INTPA radio telescope continues to observe a pulsar cluster. During continuous observations in April and May this year, strong evidence was found of a fingerprint change in this star, which changed its rhythm and clock behavior.
The INPTA team continued observing the pulsar to monitor changes after this event. From low radio frequency observations from UGMRT, the team came to the conclusion that the observed change in this event is much larger than any other pulsar clock used in experiments to date. Accurate observation time is essential in these experiments, so taking these changes into account will provide reliability in the detection of nanohertz gravitational waves.
Congratulating the entire team for this discovery, Professor Ajit Chaturvedi, Director, IIT Roorkee said that the students of the institute have enhanced their value by making a big contribution in this field with the help of UGMRT. He expressed hope that other disciplines would also benefit from the present success in nuclear astrophysics. Jaykhomba Singha, a Ph.D. student of IIT Roorkee, said, 'The new discovery in the direction of knowing nanohertz gravitational waves is a great achievement of our research.'
Category: Science and Technology