Jupiter’s Great Red Spot (GRS) is the largest atmospheric vortex in the Solar System and has been observed for at least two centuries. It has been unclear how deep the vortex extends beneath its visible cloud tops. We examined the gravity signature of the GRS using data from 12 encounters of the Juno spacecraft with the planet, including two direct overflights of the vortex. Localized density anomalies due to the presence of the GRS caused a shift in the spacecraft line-of-sight velocity. Using two different approaches to infer the GRS depth, which yielded consistent results, we conclude that the GRS is contained within the upper 500 kilometers of Jupiter’s atmosphere.

The depth of Jupiter’s great red spot constrained by Juno gravity overflights / Parisi, M.; Kaspi, Y.; Galanti, E.; Durante, D.; Bolton, S. J.; Levin, S. M.; Buccino, D. R.; Fletcher, L. N.; Folkner, W. M.; Guillot, T.; Helled, R.; Iess, L.; Li, C.; Oudrhiri, K.; Wong, M. H.. - In: SCIENCE. - ISSN 0036-8075. - 374:6570(2021), pp. 964-968. [10.1126/science.abf1396]

The depth of Jupiter’s great red spot constrained by Juno gravity overflights

Parisi M.
Primo
;
Durante D.;Iess L.;
2021

Abstract

Jupiter’s Great Red Spot (GRS) is the largest atmospheric vortex in the Solar System and has been observed for at least two centuries. It has been unclear how deep the vortex extends beneath its visible cloud tops. We examined the gravity signature of the GRS using data from 12 encounters of the Juno spacecraft with the planet, including two direct overflights of the vortex. Localized density anomalies due to the presence of the GRS caused a shift in the spacecraft line-of-sight velocity. Using two different approaches to infer the GRS depth, which yielded consistent results, we conclude that the GRS is contained within the upper 500 kilometers of Jupiter’s atmosphere.
2021
Juno; great red spot; Jupiter; gravity field; orbit determination
01 Pubblicazione su rivista::01a Articolo in rivista
The depth of Jupiter’s great red spot constrained by Juno gravity overflights / Parisi, M.; Kaspi, Y.; Galanti, E.; Durante, D.; Bolton, S. J.; Levin, S. M.; Buccino, D. R.; Fletcher, L. N.; Folkner, W. M.; Guillot, T.; Helled, R.; Iess, L.; Li, C.; Oudrhiri, K.; Wong, M. H.. - In: SCIENCE. - ISSN 0036-8075. - 374:6570(2021), pp. 964-968. [10.1126/science.abf1396]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1605351
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