LONDON (IT BOLTWISE) – Scientists are using the precise timing of pulsars to identify gravitational waves in the universe. These waves, which could come from collisions of supermassive black holes as well as the Big Bang, offer new insights into the structure of the cosmos.
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In the fascinating world of astrophysics, pulsars play a crucial role in the discovery of gravitational waves. These dead stars, rotating at high speeds, emit beams of radio waves that serve as precise timekeepers. Scientists use this property to detect the subtle changes in space-time caused by gravitational waves.
Gravitational waves are ripples in the structure of space-time that arise from massive cosmic events such as the collision of supermassive black holes or the Big Bang itself. These waves are so weak that they are difficult to detect. But the regular pulses of pulsars provide a unique way to identify these waves by revealing variations in their timing.
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) recently published results indicating that they have discovered signs of background noise from gravitational waves. This discovery could be a significant step in astrophysics as it could help us better understand the origins of the universe and estimate the number and mass of supermassive black holes in the cosmos.
Research by Hideki Asada and Shun Yamamoto of Hirosaki University in Japan offers a new perspective on analyzing these waves. They suggest that the interference patterns of gravitational waves originating from two nearby supermassive black holes with similar frequencies could be used to distinguish them from the primordial waves of the Big Bang. This method could make it possible to disentangle the different sources of gravitational waves and gain new insights into the early phase of the universe.
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