Jake Montgomery, a doctoral student in the joint space physics program between UTSA and SwRI, noted that these phenomena occur when a large difference in velocity forms across the boundary between two regions in space. This can create a swirling wave, or vortex, at the interface that separates a planet's magnetic field and the solar wind, known as the magnetopause. These Kelvin-Helmholtz waves are not visible to the naked eye but can be detected through instrument observations of plasma and magnetic fields in space. Plasma — a fundamental state of matter made up of charged particles, ions and electrons — is ubiquitous across the universe.
"Kelvin-Helmholtz instabilities are a fundamental physical process that occurs when solar and stellar winds interact with planetary magnetic fields across our solar system and throughout the universe," Montgomery said. "Juno observed these waves during many of its orbits, providing conclusive evidence that Kelvin-Helmholtz instabilities play an active role in the interaction between the solar wind and Jupiter."
Montgomery is the lead author of a study published in Geophysical Research Letters that uses data from multiple Juno instruments, including its magnetometer and the SwRI-built Jovian Auroral Distributions Experiment (JADE).
"Juno's extensive time near Jupiter's magnetopause has enabled detailed observations of phenomena such as Kelvin-Helmholtz instabilities in this region," said Dr. Robert Ebert, a staff scientist at SwRI who also serves as an adjoint professor at UTSA. "This solar wind interaction is important as it can transport plasma and energy across the magnetopause, into Jupiter's magnetosphere, driving activity within that system."
More information: J. Montgomery et al, Investigating the Occurrence of Kelvin‐Helmholtz Instabilities at Jupiter's Dawn Magnetopause, Geophysical Research Letters (2023). DOI: 10.1029/2023GL102921
Journal information: Geophysical Research Letters
I've got Screenshots of Earth's magnetosphere when it has been stretched to its limits and it could be questionable as to how far it goes before Earth looses its atmosphere.
There's a significant solar wind due, currently 483.7km/sec ( now't to write home about ) and once more our magnetosphere will be tortured.
There's lessons to be learnt at home, never mind Jupiter.