Oscillations and Stability of the Jupiter Polar Cyclones

نویسندگان

چکیده

Juno discovered the circumpolar cyclones polygons on Jupiter in 2017. Fundamental questions regarding Jovian cyclogenesis concern formation mechanism and whether these are deep or shallow. Recent data by Juno/JIRAM infrared camera show that any change is an extremely unlikely event annual scale. Only once, 2019, a sixth cyclone joined pentagonal structure South, but it disappeared after 2 months without merging with pre-existing cyclones; disappearance creation of stable has never been observed. Additionally, rotation speeds north south as whole not compatible shallow hypothesis; both structures drift at much smaller rate than typical scale velocities surface, differ two poles. Cyclones oscillate around what may seem like equilibrium positions, oscillations tend to propagate from one another. These have almost equal timescales, here we investigate possible implications such similarity.

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ژورنال

عنوان ژورنال: Geophysical Research Letters

سال: 2021

ISSN: ['1944-8007', '0094-8276']

DOI: https://doi.org/10.1029/2021gl094235