Multi-species hybrid modeling of plasma interactions at Io and Europa

0485998 - ÚFA 2018 US eng A - Abstrakt
Šebek, Ondřej - Trávníček, P. - Walker, R. J. - Hellinger, Petr
Multi-species hybrid modeling of plasma interactions at Io and Europa.
AGU Fall Meeting. s. l.: American Geophysical Union, 2017. SM33D-2705.
[AGU Fall Meeting 2017. 11.12.2017-15.12.2017, New Orleans]
Institucionální podpora: RVO:68378289
Klíčová slova: plasma interactions * multi-species global hybrid simulations
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
https://agu.confex.com/agu/fm17/meetingapp.cgi/Paper/270255

We study the plasma interactions of Galilean satellites, Io and Europa, by means of multi-species global hybrid simulations. For both satellites we consider multi-species background plasma composed of oxygen and sulphur ions and multi-component neutral atmospheres. We consider ionization processes of the neutral atmosphere which is then a source of dense population of pick-up ions. We apply variable background plasma conditions (density, temperature, magnetic field magnitude and orientation) in order to cover the variability in conditions experienced by the satellites when located in different regions of the Jovian plasma torus. We examine global structure of the interactions, formation of Alfvén wings, development of temperature anisotropies and corresponding instabilities, and the fine phenomena caused by the multi-specie nature of the plasma. The results are in good agreement with in situ measurements of magnetic field and plasma density made by the Galileo spacecraft.
Trvalý link: http://hdl.handle.net/11104/0280897