From a Weak to a Strong Comet – 3d Global Hybrid Simulation Studies |
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Authors: | Bagdonat Thorsten Motschmann Uwe |
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Affiliation: | (1) Institute for Theoretical Physics, Technical, University of Braunschweig, Germany |
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Abstract: | Plasma structures resulting from the solar wind interaction with weakcomets are discussed. Numericalsimulations using a newly developed hybrid code are presented. The simulations are primarily applied to quantitative data for cometWirtanen, which will be the target of the Rosetta mission. It isexpected that Wirtanen is very weak during the first encounter. The main purpose is the discussion of the different features of the plasmaenvironment, such as the structured cycloidal plasma tail and non-linear Mach cones typical for weak comets and their relation tostructures like shocklets, bow shock, diamagnetic cavity and the “classical”magnetotail found at stronger comets. Furthermore, the sensitivity ofthese various features in dependence on the plasma parameters is investigated. |
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Keywords: | Comet hybrid simulation |
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