Regensburg 2007 – wissenschaftliches Programm
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EP: Fachverband Extraterrestrische Physik
EP 10: Poster
EP 10.9: Poster
Mittwoch, 28. März 2007, 18:00–20:00, H46
Motion of Interplanetary Dust Particles in the Inner Heliosphere — •Mariana Wagner1, Christian Steigies1, Klaus Scherer2, and Robert Wimmer-Schweingruber1 — 1Christian-Albrechts Universität zu Kiel — 2Universität Bonn
Interplanetary Dust Particles (IDP's) are influenced by a variety of forces as they are passing the sun's magnetic field. Forces such as gravity or for charged dust particles the deflecting Lorentz force are acting upon a particle. But the secular orbit evolution is mainly influenced by the electromagnetic and the plasma Poynting-Robertson (PR) drag forces. Due to different solar wind parameters in the ecliptic plane and over the poles the plasma PR-effect shows a dependence on the solar latitude whereas the electromagnetic PR- effect operates isotropically. Close to the sun (<0.03AU) other effects like scattering and sputtering gain in importance. The targeted objective is to simulate trajectories of IDP's in a distance of some AU's from the sun with a C++-based open source numerical simulation package called "xmds".