IIT-Hyderabad researchers looking for Einstein waves

InPTA, of which the IIT-H is a participant, has joined the IPTA (International Pulsar Timing Array) as a full member, as part of the international research efforts for nanoHz gravitational waves.

Hyderabad: Researchers at the Indian Institute of Technology, Hyderabad (IIT-H) have now joined the global hunt for gravitational waves, also popular as Einstein waves (named after Albert Einstein), originating from holes black monsters. Indian Pulsar Timing Array (InPTA), of which IIT-H is a participant, has joined the International Pulsar Timing Array (IPTA) as a full member, as part of the international research efforts for nanoHz gravitational waves. .

The InPTA consortium is a collaboration of about 25 scientific researchers and students from 15 institutions in India and abroad, used the improved Giant Metrewave Radio Telescope (uGMRT) observatory at the National Center for Radioastrophysics of the Institute for Basic Research Tata (NCRI-TIFR), to measure approximately 6 to 20 milliseconds of radio pulsars since 2015.

Alongside the IITH, NCRA-TIFR, many other organizations such as the Raman Research Institute (RRI) are involved in the consortium which will now join international efforts to discover and study very low frequency gravitational waves from holes black monsters flowing around each other. orbit, a statement from IIT Hyderabad said.

The IPTA uses the world’s largest radio telescopes to accurately measure the clock periods of a collection of radio pulsars. The unique frequency range of uGMRT, which is the world’s largest steerable low-frequency radio telescope, helps improve the accuracy of IPTA for detecting nanohertz gravitational waves. Once discovered, these waves will refine the evolutionary models of the Universe as well as the masses and orbits of the members of the solar system and will open a new window into gravitational wave astronomy. These clocks are observed between 300 and 800 MHz with the uGMRT, which is not covered by other large IPTA telescopes.

The inclusion of uGMRT will make it possible to remove the delays introduced by the interstellar medium into the arrival of radio pulses from these galactic clocks by a factor of 5 more precisely than before, which should be crucial for improving the accuracy of IPTA. . Therefore, InPTA and uGMRT are likely to play an important role in the detection of nanohertz gravitational waves and gravitational astronomy with these waves in the future.

Dr Shantanu Desai, Associate Professor Department of Physics Raghav Girgaonkar (BTech in Engineering Physics) and Ashwin Pandey (B Tech in Mechanical Engineering) are currently part of this prestigious collaboration of the Indian Institute of Technology-Hyderabad (IIT-H). Another IITH alumnus, Suryarao Bethapudi (BTech Engineering Physics, batch of 2018), and currently a doctoral student at MPIFR, Germany, is also part of the collaboration.

Dr Shantanu Desai said: “IITH has been part of InPTA since 2017. Our students participate in data collection using the unique capabilities of uGMRT and play an important role in ongoing data analysis. in partnership with NCRA-TIFR. Now that we are part of the global international research effort for nanoHz gravitational waves, this offers many opportunities for IITH science and engineering students to join this global effort to make groundbreaking discoveries.

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