Space Sciences

An intense narrow equatorial jet in Jupiter's lower stratosphere observed by JWST

R. Hueso, A. Sánchez-lavega, et al.

Explore the groundbreaking findings from the James Webb Space Telescope's observations of Jupiter in July 2022, revealing a powerful equatorial jet and its connection to the planet's atmospheric dynamics, conducted by a team of renowned researchers.

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Index

Abstract

James Webb Space Telescope (JWST) observations of Jupiter in July 2022 reveal an intense (140 m s⁻¹) equatorial jet at 100–200 mbar, significantly faster than zonal winds at the cloud level. This jet, confined to ±3° of the equator, is located below stratospheric thermal oscillations, suggesting a connection to Jupiter's Equatorial Stratospheric Oscillation (JESO). The findings highlight similarities with Saturn's equatorial circulation and raise questions about troposphere-stratosphere interactions.

Publisher

Nature Astronomy

Published On

Oct 19, 2023

Authors

Ricardo Hueso, Agustín Sánchez-Lavega, Thierry Fouchet, Imke de Pater, Arrate Antuñano, Leigh N. Fletcher, Michael H. Wong, Pablo Rodríguez-Ovalle, Lawrence A. Sromovsky, Patrick M. Fry, Glenn S. Orton, Sandrine Guerlet, Patrick G. J. Irwin, Emmanuel Lellouch, Jake Harkett, Katherine de Kleer, Henrik Melin, Vincent Hue, Amy A. Simon, Statia Luszcz-Cook, Kunio M. Sayanagi

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