Jupiter rotates in less than 10 hours. Its rotation is differential, with the upper layers of the atmosphere spinning a bit faster at the equator than at higher latitudes. Do the inner layers of Jupiter rotate at the same (angular) speed as the outmost layers of the atmosphere?
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1Well, if the inner layers have the same angular speed then they have a lower linear speed. – PM 2Ring Nov 10 '20 at 13:36
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No. The deep interior of the planet rotates as (nearly) a rigid body (Guillot et al. 2018), while the outer part of the planet undergoes differential rotation. Therefore the interior and exterior rotation cannot match at all latitudes simultaneously.
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Quite a cool paper! I think this was about the time that single, well characterized value for the rotational period of Jupiter could be ascertained? – uhoh Nov 11 '20 at 00:03