China News Service, Beijing, March 7 (Reporter Sun Zifa) The internationally renowned academic journal "Nature" recently published a planetary science paper. Researchers based on the observations of the NASA "Juno" Jupiter probe, The study found changes in the magnetic field above Jupiter's "Great Blue Spot," a concentrated magnetic field near the planet's equator.
This study provides detailed information about the magnetic field changes above the "Great Blue Spot", which may improve astronomers' understanding of the interior of the gas giant Jupiter.
The paper describes magnetic fields as a way to study the dynamics of a planet's deep interior.
Changes in Jupiter's magnetic field have been observed before and attributed to an equatorial jet.
However, the precise details of this jet have never been determined, and such details are crucial to understanding the dynamics of Jupiter's interior.
In this study, the first author and corresponding author of the paper, Jeremy Bloxham of Harvard University, USA, together with colleagues and collaborators, analyzed the magnetic field observations of Jupiter's "Great Blue Spot" by "Juno" and found that the depth of Jupiter's atmosphere was A jet at will fluctuate with a cycle of about 4 years.
They pointed out that this research result shows that there are torsional waves (vibrations around Jupiter's rotation axis) or Alfvén waves (waves propagating along magnetic field lines) inside Jupiter's metallic core.
The authors of the paper concluded that the detailed information provided by their latest research can help understand the previously unknown internal dynamic environment of Jupiter, and may help people understand the "dynamo" of Jupiter's magnetic field.
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