The Earth’s magnetic field is shaped by the complex motion of molten metals in the Earth’s core and by interactions with electric specks coming from the Sun. The borderlines of the field are forever altering and researchers have found evidence to suggest that the edge of the magnetosphere can vibrate like a drum.
This idea was first proposed 45 decades ago. When the outer boundary of the field, known as the magnetopause, is struck by solar plasma, ruffles propagate across the surface. When these vibrations reach the spars they are reflected back. This develops an interference pattern known as a standing wave motif, just like how a drum’s voice is produced.
As reported in Nature Communications, this is the first time that the effects has been observed and the measurement is consistent with the conjecture. The cause of the standing motion pattern can either has become a powerful reach from the solar jazz or more subtle interactions between Earth’s magnetic field and the corpuscles in the solar wind.
“There had been speculation that these drum-like vibrations might not occur at all, in view of the lack of proof over the 45 years since they were proposed. Another prospect was that they are just very difficult to definitively detect, ” produce writer Dr Martin Archer, a room physicist at Queen Mary University of London, said in a statement.
“Earth’s magnetic shield is endlessly buffeted with disturbance so we thought that clear evidence for the proposed booming vibrations might require a single sharp-witted slam from an motive. You would also need lots of satellites in only the best place during this event so that other known dins or resonances could be ruled out. The phenomenon in the present working paper clicked all those quite strict caskets and at last we’ve established the boundary’s natural response.”
The sees were possible thanks to a constellation of five NASA THEMIS satellites. They were in the best place at the right time and heard a strong segregated spray of plasma hitting the magnetopause. They were able to study the effect of this impulse and measure the oscillation within the magnetosphere.
There is still much that we don’t understand better this phenomenon. We don’t know how often it appears or even though they are planets with strong magnetic fields, such as Jupiter and Saturn, knowledge similar interactions. Understanding the phenomenon holds us important evidences about the development of space condition around our planet, and how to keep our electronics safe.