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Gravitational waves play with fast spinning stars, study suggests - Space.com

Gravitational waves play with fast spinning stars, study suggests - Space.com

Gravitational waves play with fast spinning stars, study suggests - Space.com
Jan 17, 2022 1 min, 24 secs

Scientists observed changes in the signals coming from rapidly-spinning stars called millisecond pulsars that might point to the existence of subtle space-time ripples vibrating throughout the entire universe!

Scientists think that ripples in space-time, called gravitational waves, can affect these signals as they travel through space.

Although we do not have definitive evidence yet, we may be beginning to detect a background of gravitational waves," Siyuan Chen, a researcher at the Kavli Institute for Astronomy and Astrophysics at Peking University in China, and leader of the new work said in a statement.

Related: Gravitational wave treasure trove shows black holes, neutron stars colliding.

The detection of gravitational waves in 2015 was one of the greatest astronomical highlights of the past decade.

But it wasn't until sophisticated detectors such as the Laser Interferometer Gravitational Wave Observatory (LIGO) in the U.S.

Physicists have theorized that the sum of eons-worth of ripples produced by these cataclysmic events could have created a gravitational wave background that is constantly present and permeates the entire universe; something that hasn't yet been detected.

The detection of the disrupted signal coming from the millisecond pulsars may be just the step toward proving the existence of this background. .

Extremely dense and only about the size of a city, millisecond pulsars emit radio signals from their poles as they spin.

Building on an approach first described in January 2021, a team of astronomers working as part of the International Pulsar Timing Array (IPTA) project detected odd shifts in these signals.

IPTA's data is made up of the combined findings from three independent data sets, collected by European Pulsar Timing Array (EPTA), the North American Nanohertz Observatory for Gravitational Wave (NANOGrav) and PPTA. .

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