Published: Thu, November 21, 2019
Sci-tech | By Patricia Wade

When the sun has bad weather, it sounds like a creepy song

When the sun has bad weather, it sounds like a creepy song

The sun is constantly sending out a stream of charged particles known as the solar wind.

Now, for the first time, the song of Earth and Sun has been recorded during a solar storm, when the solar wind blows at its most wild and fierce out into space.

The total findings of the gaze will seemingly be published within the journal Geophysical Compare Letters.

Launched in 2000, the Cluster probes had been analysing the Earth's huge magnetic field for virtually two a protracted time.

"It's like the storm is changing the tuning of the foreshock", Lucile Turc, a space physicist at the University of Helsinki and lead researcher of this new paper, said in an ESA press release. Earth is protected from this by its magnetic field, preventing these particles from entering our atmosphere.

When the frequencies of these magnetic waves are transformed into audible signals, they give rise to an uncanny song that is more reminiscent of the sound effects from a science fiction movie than from a natural phenomenon.

The magnetosphere, the magnetic field generated by Earth's molten core, acts as a shield which is thought to protect us from being cooked by radiation carried along solar winds.

Geomagnetic storms often result in displays of auroras - the northern and southern lights - as solar particles become trapped along the magnetic field lines, and stream down into the upper atmosphere near the poles.

Computer simulations of the foreshock, performed using a model called Vlasiator, which is being developed at the University of Helsinki, demonstrate the intricate wave pattern that appears during solar storms.

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Solar storms are a part of space weather.

But when the storm hits, the frequency of the wave is doubled, and the wave itself breaks into a complex network of different, higher frequencies. In the undisturbed foreshock, the sounds are very low pitched and monotonous'.

Data for the study was collected by the ESA's Cluster II mission, which placed four identical spacecraft, flying in formation, in the Earth's so-called magnetosphere. According to the team, from 2001 to 2005, the mission encountered six collisions between Earth and solar storms.

It's a quickly job, with the wave generated on the foreshock reaching the bottom taking in round 10 minutes. The archive provides access to all data obtained during Cluster's ongoing mission over nearly two decades.

The researchers are truly working to sign precisely how these complex waves are generated.

Behind the bow shock, the magnetic fields of Earth start to resonate at the frequency of the waves and this contributes to the transmission of the magnetic disturbance all the way to the ground.

The study used data from the Cluster mission.

Understanding location climate has modified into increasingly more foremost to society attributable to the unfavorable effects solar storms can maintain on sensitive electronics and technology both on the bottom and in location.

'The results take us deeper into the details of basic magnetic interactions that happen across the universe'.

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