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๐™ณ๐šŠ๐šข 2 ๐ŸŒ™ ๏ผงโ–ฒ๏ผฎ๏ผน๏ผญ๏ผฅ๏ผค๏ผฅ

Updated: Jun 25, 2022

๐™ณ๐šŠ๐šข 2 ๐ŸŒ™ GANYMEDE

Sunday, we salute legendary scientists and explore Celestial Wings๐Ÿ•Š

I consulted the incredible Dr Xianzhe Jai regarding the scintillating science taking place at Ganymede, and he patiently walked me through the heady science concepts and today's topic โ€” Ganymede's unique magnetospheric design.

Many planetary bodies experience the direct influence of solar wind particles. The solar wind-heat slows down at the bow shock and detours around the magnetosheath, similar to watching water detouring around the edges of a stone.

The wave flow at Ganymede directly influences the structure of its magnetosphere. Therefore, it is not the typical design you would see at other planetary magnetospheres exposed to the solar winds.

Instead, Ganymede's magnetosphere forms alfvรฉn-wings that are morphologically easy to recognise. It creates two extending wing-like formations above and below Ganymede.

LIBRETTO excerpt

๐‘ด๐’๐’“๐’‘๐’‰๐’๐’๐’๐’ˆ๐’Š๐’„๐’‚๐’ ๐’˜๐’Š๐’๐’ˆ๐’” ๐’‡๐’๐’“๐’Ž

๐‘บ๐’๐’๐’˜๐’๐’š ๐’”๐’‰๐’‚๐’‘๐’Š๐’๐’ˆ, ๐’‰๐’†๐’‚๐’—๐’†๐’๐’๐’š ๐’Ž๐’‚๐’Œ๐’Š๐’๐’ˆ

๐‘ช๐’๐’”๐’Ž๐’Š๐’„ ๐’˜๐’๐’๐’…๐’†๐’“

๐‘ป๐’‰๐’† ๐‘ช๐’†๐’๐’†๐’”๐’•๐’Š๐’‚๐’ ๐’ƒ๐’Š๐’“๐’•๐’‰ ๐’๐’‡ ๐‘จ๐’๐’‡๐’—๐’†ฬ๐’ ๐’˜๐’Š๐’๐’ˆ๐’”

Solar Winds are super- alfvรฉnic; however, inside the Jovian magnetosphere, the plasma waves move at sub Alfvenic speeds that travel at approximately 150km per second, which is considerably slower than the solar winds' speed which averages 400km per second.

"Alfvรฉn" derives its name from the Swedish born scientist Hannes Alfvรฉn, who won the noble prize in physics in 1971 for his work on Magnetohydrodynamics (MHD).

Ganymedes alfvรฉn-wings directly mediates the interaction of the plasma and ionosphere of Jupiter, and its slower-moving plasma environment is an excellent benefit for scientists to study since the calmer conditions act as a natural laboratory for further research and continues to enthral planetary scientists.

The magnetosheath is the region of the magnetosphere between the bow shock and the magnetopause

He won the noble prize in physics in 1970 for his work on Magnetohydrodynamics (MHD). MHD in plasma physics measures hydromagnetic waves that can propagate in magnetically dominated plasma.


GANYMEDE Music Excerpt "Celestial birth of Alfven Wings"

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