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plasma sheet

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plasma sheet [′plazĀ·mə ‚shēt]
(geophysics)
A region of relatively hot plasma outside the plasmasphere, which reaches, during quiet times, from an altitude of about 30,000 miles (50,000 kilometers) to at least past the moon's orbit in a long tail extending away from the sun; composed of particles with typical thermal energies of 2 to 4 kiloelectronvolts.


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The 5 hour variation appears to be linked to the rotational period of Jupiter's magnetic field and the movement of Ganymede through the tilted plasma sheet that surrounds the planet," said Dr.
The scientists also confirmed that when the magnetic field carried by the plasma sheet points opposite to the direction of Earth's magnetic field, material within the sheet can penetrate Earth's protective magnetic bubble.
It is fed by low-energy charged particles that are lifted into space over Earth's poles, carried behind the Earth in its magnetic tail, but then jerked around 180 degrees by a kink in the magnetic fields that boosts the particles back toward Earth in a region called the plasma sheet.
 
 
 
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