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Gravitational Waves: Black Hole Detector to Upgrade



  LIGO Louisiana

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NSF

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The LIGO Louisiana Laboratory, which detected gravitational waves, is in the queue for updating
The governments of the United Kingdom and the United States have announced the renewal of GBP 25 million, which showed gravity waves three and a half years ago.

Advanced instruments will detect collisions of black holes almost twice

By 2024, they will be able to unprecedentedly observe more than three similar cataclysmic events daily.

at the meeting of the American Association for the Advancement of Science in Washington.

Prof. Sheila Rowen of the University of Glasgow, who will be among those who manage the project, said that the update will help us understand more about black holes, gravity and neutron stars. 1

9659007] "We have learned a lot from ten black holes and one collision of the neutron stars we watched," she said.

"We are still at the very beginning of what (the instrument) can deliver for us in a number of areas of science."

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NSF / LIGO

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Ligo Laboratory fires lasers through long tunnels trying to experience ripples in a space-time cloth

What are gravitational waves?

Gravitational waves are ripples that refer to the universe when gravity at a certain point in space suddenly changes, for example, due to the collision of two black holes. The process is similar to the throbbing caused by the pebble thrown into the pond, but in the case of gravitational waves, the space and everything in it is a pond.

As the ripples of water, everything in the way of the waves: stars, planets, houses, even humans, get finely higher and sharper, and then shorter and thicker, as they pass. But the distortions are tiny – much smaller than the atomic width.

Einstein predicted the existence of such waves in 1916, but reportedly he said that they were too small to never be detected. But 100 years later, it turned out to be right and wrong when the international team discovered them with a pair of 4-kilometer L-shaped cars called Advanced Ligo.

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Pallab Ghosh explains the sound of a gravitational wave and computer visualization

How does Advanced Ligo work?

Extremely good, the researchers say. In fact, the car detected gravitational waves shortly after its inclusion.

The Ligue team continued to detect nine more black hole collisions and one collision of two dead stars called neutron stars for the next two years. This shows that we are living in a violent universe, where such catastrophic events are the norm.

The L-shaped instrument essentially consists of two high-precision rulers 90 degrees to each other. Each hand has a laser beam that bounces off the mirror at the other end. The time required to return is the measure of the length of each hand.

When the gravitational wave comes from the space, the L-form is initially stretched out and then squeezed a small amount in a fraction of a second, but this is enough to detect the changes.


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MPI / NCSA


What will be called an update?

Incredibly, it will be called Advanced Ligo Plus, but it means that it may be given the abbreviation A +, which marketers will definitely like.

A significant part of the "plussing" will be conducted by a British team led by researchers at the Gravity University Institute of Gravity, which has the expertise to build the high accuracy tools needed to measure the creation of gravitational waves.

Researchers will increase sensitivity in four ways. First, they will have better, brilliant mirrors; and secondly, the mirrors will have an improved coating, which reduces the vibration of the molecules on the surface; Thirdly, the suspension system, on which the mirrors will hang, will become even more stable, and finally, at the quantum level, it is known that light is unclear. With the help of a team in Australia, researchers sharpen it, compressing blurriness.

What to study A +?

Being able to detect more collisions with black holes, researchers will be able to learn more about them, especially at their edges, where the laws of physics begin to break down.

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Researchers at the University of Glasgow develop special coatings to emphasize the focus of mirrors used in gravity wave detectors.

As well as increasing the number, scientists will be able to observe collisions in much greater resolution – in a super-high definition compared to what they can now detect. It is more difficult to detect a collision of dead stars, called neutron stars. They are exciting because the whole burning gas fell into itself to form a super dense material. One teaspoon of material weighs 10 million tons.

Physicists want to know what this stuff is. It is believed that neutron stars produce gold, platinum, and other heavy metals when faced.

The current device detected only one. A + will be able to detect 13 each month.

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Media title The reasons why gravitational waves are important. Ground-based telescopes looking at distant supernovas come with another response to the Planck Space Telescope, which looks at the cosmic radiation left over from the Big Bang. A + will measure the expansion by looking at the behavior of the gravitational wave. She will either find that the measurements from ground telescopes or Planck are incorrect, or, I hope, something really strange happens.

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