They find out what happens when the solar wind hits the Earth’s magnetic ‘bubble’

Descubren qué sucede cuando el viento solar golpea la 'burbuja' magnética de la Tierra

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7 October 2021 20:24 GMT

The discovery was made by a team of researchers led by Martin Archer, a space physicist at Imperial College, British University, London.

Earth (a stream of particles emitted by the Sun) that is constantly subject to the flow of charged particles from the solar wind. Protected by a ‘bubble’ of magnetism called the magnetosphere, The interior of our planet is coming out of the depths.

Scientists have long speculated that when particles hit the magnetic field, its edges create a series of energy waves that must wave in the direction of the solar wind, but some do the opposite.

A team of researchers led by Martin Archer, a space physicist at the British Imperial College London Communicated You found this Wednesday, some of those waves were created They stand still.

In 2019, Archer and his colleagues They came to the conclusion The tip of the magnetosphere, called the ‘magnetopos’, acts like a drum membrane. When a pulse from the solar wind strikes, waves called magnetosonics propagate through the magnetopos to the poles and reflect to the source. Now, using data from NASA’s THEMIS mission, they have discovered that they can, in addition to emitting these magnetosonic waves, Do it by moving in the direction of the solar wind.

They may come to a standstill

According to the models made by the researchers, as the solar wind wave overcomes the wave, both forces become stationary. A lot of energy is applied, but nothing progresses. “This is similar to what happens when they try to climb down an escalator“Archer explained.” They are working hard, but they don’t seem to be moving, “he added.

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These standing waves can last longer than traveling with the solar wind, which means they can last longer to accelerate particles in space near the Earth, which can have repercussions in such areas. Radiation belts of our planet, the aurora or ionosphere, Says the study Published by In the journal Nature Communications.

The researchers also revealed that waves can occur anywhere else in the universe, from the magnetic fields of other planets to the boundaries of black holes.

At the same time, scientists They translated Sound waves. “We can see what’s happening everywhere in a simulation, and the moons can measure these waves, where they only give us time ranges and wave lines. In fact, this kind of data is better suited to our auditory perception than sight. Archer explained.

“When all the vibrations are generated you can hear the sound of deep breathing of the stationary waves always increasing. The loudest sounds associated with other waves do not last long,” he said.

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