Callisto plasma interactions: Hybrid modeling including induction by a subsurface ocean

Callisto plasma interactions : Hybrid modeling including induction by a subsurface ocean

Lindkvist, Jesper (author): Umeå universitet,Institutionen för fysik,Swedish Institute of Space Physics, Kiruna

Khurana, Krishan K. (author): Department of Earth and Space Sciences, University of California, Los Angeles

Fatemi, Shahab (author): Space Sciences Laboratory, University of California, Berkeley

(creator_code:org_t)

2015
2015
English.
In: Journal of Geophysical Research - Space Physics. - 2169-9380 .- 2169-9402. ; 120:6, s. 4877-4889

Related links:: https://umu.diva-por... (primary) (Raw object); show more...; https://urn.kb.se/re...; https://doi.org/10.1...; show less...

Abstract Subject headings

By using a hybrid plasma solver (ions as particles and electrons as a fluid), we have modeled the interaction between Callisto and Jupiter's magnetosphere for variable ambient plasma parameters. We compared the results with the magnetometer data from flybys (C3, C9, and C10) by the Galileo spacecraft. Modeling the interaction between Callisto and Jupiter's magnetosphere is important to establish the origin of the magnetic field perturbations observed by Galileo and thought to be related to a subsurface ocean. Using typical upstream magnetospheric plasma parameters and a magnetic dipole corresponding to the inductive response inside the moon, we show that the model results agree well with observations for the C3 and C9 flybys, but agrees poorly with the C10 flyby close to Callisto. The study does support the existence of a subsurface ocean at Callisto.

By the author/editor: Lindkvist, Jespe ...; Holmström, Mats; Khurana, Krishan ...; Fatemi, Shahab; Barabash, Stas

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Fusion Plasma an ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.