April 22, 2025
Science

Giant waves that create tsunami effect in space-time when two galaxies collide observed for the first time

  • July 3, 2023
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A historic discovery has recently been announced about the universe, about which humanity still produces huge theories. North American Nanohertz Gravitational Waves Observatory (NANOGrav)for the first time in

A historic discovery has recently been announced about the universe, about which humanity still produces huge theories. North American Nanohertz Gravitational Waves Observatory (NANOGrav)for the first time in history formed by the collision of two galaxiesgravity waves‘ could be observed.

Before going into details, it is useful to summarize it simply so that you do not lose interest: we can say that concrete evidence of ripples similar to sea waves in space has been observed for the first time. According to Professor Michael Kramer, speaking for the BBC, the discovery has been made has the potential to change their ideas about the universe.

What is this discovery?

The discovery happened thanks to two distant galaxies that began to merge. The supermassive black holes at the center of these galaxies are also approaching each other along with the galaxies. This is what makes exploration possible. convergence of two supermassive black holes it happened.

The main focus of the NANOGrav team is ‘dead stars’, which continuously emit electromagnetic radiation from their magnetic poles, i.e. two points, to the universe.pulsars‘ used to be. The team is constantly monitoring and recording the signals from the pulsars. He has observed 79 pulsars so far.

Until now, no time difference has been observed between the radiation that pulsars, which we can think of as lighthouses in space, emit to the universe. Radiation from these structures It was as accurate and orderly as a clock.

But the data obtained from one pulsar’s radiation was very different from the others. Unlike the others, the radiations detected by Earth’s telescopes had no fixed order. This is in space an indication that something is interfering with the order used to be.

Here was the source of that sign, two merging galaxies:

The NANOGrav team attributed the source of the irregularity between Earth and pulsar radiation to two merging galaxies. The convergence of supermassive black holes in the centers of these galaxies giant gravitational waves was thrown into space.

However, the main source is still these two galaxies. cannot be clearly stated. I guess. Because a source that would spread such a large wave and cause disorder has not yet been observed.

The discovery of the NANOGrav team, 15 years and was the result of data from 68 observed pulsars.

But what are these “gravity” waves?

You’ve probably heard the expressions like “bending” space-time. Galaxies, stars and all kinds of massive structures can cause warping in space-time, which we can embody as a sheet. Even the effects of this bending We can even see it in space photos:

Here, the gravitational waves represent waves similar to the waves in the ocean, further bending this already curved sheet. The existence of these waves was discovered in 1916. It was predicted by Albert Einstein.

The first discovery of gravitational waves took place in 2015. The team that made this discovery won the 2017 Nobel Prize in Science for their discovery.

One thing we know has now changed:

Until now, the scientific world assumed that the gravitational waves created by the collision of two black holes were quite small. But with the latest discovery, that thinking is about to change.

It is now known that giant gravitational waves are created when two giant black holes come close to each other.

What is the significance of the latest discovery?

It would be more helpful to read the significance of the new discovery from the words of Professor Michael Kramer, one of the scientists involved in the research:

“It can tell us if Einstein’s theory of gravity is wrong; it can tell us what the mysterious things that make up most of the universe, dark matter and dark energy, really are, and give us a new window into new physical theories. “

Source: Web Tekno

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