{'fraction_non_alphanumeric': 0.043345543345543344, 'fraction_numerical': 0.027472527472527472, 'mean_word_length': 4.574829931972789, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
3D hybrid simulation of the Titan's plasma environment

Submitted for the DPP07 Meeting of The American Physical Society 3D hybrid simulation of the Titan’s plasma environment ALEXANDER LIPATOV, GEST Center UMBC, EDWARD SITTLER JR., RICHARD HARTLE, NASA GSFC — Titan plays an important role as a simulation laboratory for multiscale kinetic plasma processes which are key processes in space and laboratory plasmas. A development of multiscale combined numerical methods allows us to use more realistic plasma models at Titan. In this report, we describe a Particle-Ion–Fluid-Ion–Fluid–Electron method of kinetic ion-neutral simulation code. This method takes into account charge-exchange and photoionization processes. The model of atmosphere of Titan was based on a paper by Sittler, Hartle, Vinas et al., [2005]. The background ions H+, O+ and pickup ions H 2 , CH + 4 and N 2 are described in a kinetic approximation, where the electrons are approximated as a fluid. In this report we study the coupling between background ions and pickup ions on the multiple space scales determined by the ion gyroradiis. The first results of such a simulation of the dynamics of ions near Titan are discussed in this report and compared with recent measurements made by the Cassini Plasma Spectrometer (CAPS, [Hartle, Sittler et al., 2006]). E C Sittler Jr., R E Hartle, A F Vinas, R E Johnson, H T Smith and I MuellerWodarg, J. Geophys. Res., 110, A09302, 2005. R E Hartle, E C Sittler, F M Neubauer, R E Johnson, et al., Planet. Space Sci., 54, 1211, 2006. Alexander Lipatov GEST Center UMBC Date submitted: 27 Jun 2007 Electronic form version 1.4