Würzburg 2018 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 11: Sun and Heliosphere III - Particles

EP 11.3: Vortrag

Donnerstag, 22. März 2018, 15:45–16:00, BSZ - Pabel HS

Transport of suprathermal protons in the inner heliosheath — •Adama Sylla and Horst Fichtner — Ruhr-Universitaet Bochum, Institut fuer Theoretische Physik IV, Universitaetsstrasse 150, 44780 Bochum

A quantitative understanding of the phase-space transport of suprathermal protons in the inner heliosheath is highly desirable, as it represents the basis for the modelling of so-called energetic neutral atoms (ENAs) observed with the Interstellar Boundary Explore (IBEX). A consistent modelling of all-sky maps of ENA fluxes at different energies will provide insight into the large-scale structure of the outer heliosphere, which is a welcome supplement to the in-situ measurements made with the Voyager spacecraft. Numerical solutions of the transport equation of supratherml protons will be presented. These solutions allow to compute the ENA production rate in the inner heliosheath and, subsequently, the resulting energy-dependent flux from a given direction.