Modelling magnetic fields and plasma flows in the magnetosphere of Jupiter

Millas, D. and Achilleos, N. and Guio, P. and Arridge, C.S. (2023) Modelling magnetic fields and plasma flows in the magnetosphere of Jupiter. Planetary and Space Science, 225: 105609. ISSN 0032-0633

Text (paper_mdisc_code_rev_v2)
paper_mdisc_code_rev_v2.pdf - Accepted Version
Available under License Creative Commons Attribution-NonCommercial-NoDerivs.
Download (11MB)

Abstract

The magnetic fields of the giant planets, Jupiter and Saturn, deviate significantly from a pure magnetic dipole and the cold plasma is mostly centrifugally confined near the equator. The additional contribution of the azimuthal currents leads to the stretching of the magnetic field and the formation of a characteristic, disc-type structure known as a magnetodisc. We present here an updated version of a numerical implementation of Caudal's iterative scheme, used to create models of the magnetosphere. In particular, we include newer equatorial density, temperature and hot plasma profiles obtained from Galileo data. Finally, we describe and use an algorithm to update the angular velocity profile after the end of the iterative process, using information from the magnetodisc. We also present comparisons between the azimuthal current and plasma flow predicted by our model and those derived from spacecraft observations.

Item Type:

Journal Article

Journal or Publication Title:

Planetary and Space Science

Additional Information:

This is the author’s version of a work that was accepted for publication in Planetary and Space Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Planetary and Space Science, 225, 2022 DOI: 10.1016/j.pss.2022.105609

Uncontrolled Keywords:

Research Output Funding/yes_externally_funded

Subjects:

?? angular velocitymagnetohydrodynamics (mhd)numerical methodsplanetary magnetic fieldsiterative methodsmagnetohydrodynamicsmagnetoplasmaplanetsplasma devicesplasma flowplasma jetsazimuthal currentcold plasmascurrent leadsdisk-typegiant planetsjupitersmagnet ??

Departments:

Faculty of Science and Technology > Physics

ID Code:

184496

Deposited By:

ep_importer_pure

Deposited On:

24 Jan 2023 10:20

Refereed?:

Yes

Published?:

Published

Last Modified:

01 Oct 2024 00:48

URI:

https://eprints.lancs.ac.uk/id/eprint/184496