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Imagine the Earth’s magnetic field. | Credit: NASA Space Center
The Earth’s magnetic field sometimes explodes into a song – but these structures are written in electromagnetic radiation, not sound waves.
When converting it into audio signals, though, these are strange shroups that appear to be an increasing choir of chiri singing similar to the morning birds, which is why physicists call these short and intense shirts of radiation “choir waves”. Each radiation explosion continues a few tenths away, but the signals can be repeated for hours. As beautiful as it looks, the choir waves can be very dangerous Satellite In orbit.
A team of researchers, led by the physicist CM Liu of Beihang University in China, measured a wave of a fireplace from an unexpected place, and confirmed a major part of a theory on how these strange waves shape.
Listen to magnetic music
NASA four satellites Magnetic mission A group of choir waves recently coming from a spot about 102,526 miles (165,000 km), away in the “tail” of the magnetic field of the long land. (The magnetic field of our planet should be similar to the field surrounding the ribbon magnets, but the electrically charged particles in Solar wind Pay against the magnetic field, so the side indicates away from Sun It extends to a long tail).
All that astronomers in another choir have heard closer to the house, about 31690 miles (51,000 km) from land. This is higher than orbit as you will find geological satellites, but it is still close enough to the planet that the magnetic field is elegant and organized, more like a tape magnet. Far in the tail, lines Earth magnetic field It was extended and distorted to something more chaotic. Physicists did not believe that the choir’s waves could be formed amid the spanning chaos of the magnetic field lines in the tail-but it is clear that it is possible after all.
“The discovery does not exclude the current theory, because the expected magnetic field gradients can be present, but this means that scientists need to take a closer look,” wrote Richard Horn, scientists at Cambridge University. Recent study, in a A comment paper on it.
Satellite protection from “deadly electrons”
In fact, the discovery actually supports a major part of the theory on how the choir works. Using data from multi -magnetic satellites, LIU and his colleagues measured a distribution Electrons In the wave of the choir, they saw something that physicists have predicted for decades: a hole.
Astrologists have baffled the microbey mechanics behind the choir waves for about 70 years. Sometimes, a group of electrons ends with violently across the magnetic field of the Earth, and with the electrons spinning, they release energy in the form of radiation. This radiation interacts with other electrons (which, thanks Quantum physicsIt also behaves like waves) and is amplified in larger waves. Because those waves of radiation are formed along a magnetic field, where its strength and shipment are a graduation in spaceThe waves end in short fiery shorts, both the highest frequency of the latter: like the ascending choir.
While the wave of the choir is formed, electronic movement is cut into certain spots in the form of the wave. But if there are groups in some places, there should be gaps in other places, and Liu and his colleagues measure the gap in the wave of their choir. This may indicate that the full model of how the shape of the choir waves is often correct – except for the part in which it can be formed.
If LIU and its colleagues are correct, the choir’s waves may form almost anywhere in space, not only in places where the magnetic field is elegant and is not run by solar wind. This means that we must search for the choir waves from the exit in the tail of the Earth’s magnetic field, not just near the house. In theory, there must be a choir waves in the magnetic field for each planet that contains one, even if it is a little mess (so far it has already been observed. Jupiter and Saturn).
Understanding these waves a little better can help scientists predict better with the date and location of their occurrence, as well as their strength. This can be vital to the safety of the satellite that revolves around our planet, which is displayed by solar storms and other sudden radiation bursts of deep space.
“These high -energy electrons are known as” deadly electrons “because they have harmed many satellites, which cost hundreds of millions of dollars,” Horne wrote. “The choir waves are now included in prediction models designed to protect these satellites.”
