| Literature DB >> 28546206 |
S J Bolton1, A Adriani2, V Adumitroaie3, M Allison4, J Anderson5, S Atreya6, J Bloxham7, S Brown3, J E P Connerney8,9, E DeJong3, W Folkner3, D Gautier10, D Grassi2, S Gulkis3, T Guillot11, C Hansen12, W B Hubbard13, L Iess14, A Ingersoll15, M Janssen3, J Jorgensen16, Y Kaspi17, S M Levin3, C Li15, J Lunine18, Y Miguel11, A Mura2, G Orton3, T Owen19, M Ravine20, E Smith3, P Steffes21, E Stone15, D Stevenson15, R Thorne22, J Waite5, D Durante14, R W Ebert5, T K Greathouse5, V Hue5, M Parisi3, J R Szalay5, R Wilson23.
Abstract
On 27 August 2016, the Juno spacecraft acquired science observations of Jupiter, passing less than 5000 kilometers above the equatorial cloud tops. Images of Jupiter's poles show a chaotic scene, unlike Saturn's poles. Microwave sounding reveals weather features at pressures deeper than 100 bars, dominated by an ammonia-rich, narrow low-latitude plume resembling a deeper, wider version of Earth's Hadley cell. Near-infrared mapping reveals the relative humidity within prominent downwelling regions. Juno's measured gravity field differs substantially from the last available estimate and is one order of magnitude more precise. This has implications for the distribution of heavy elements in the interior, including the existence and mass of Jupiter's core. The observed magnetic field exhibits smaller spatial variations than expected, indicative of a rich harmonic content.Entities:
Year: 2017 PMID： 28546206 DOI： 10.1126/science.aal2108
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728