eprintid: 140844 rev_number: 49 eprint_status: archive userid: 608 dir: disk0/00/14/08/44 datestamp: 2010-10-27 01:38:18 lastmod: 2021-11-05 23:53:47 status_changed: 2012-08-31 13:35:10 type: article metadata_visibility: show item_issues_count: 0 creators_name: Ma, YJ creators_name: Nagy, AF creators_name: Toth, G creators_name: Cravens, TE creators_name: Russell, CT creators_name: Gombosi, TI creators_name: Wahlund, JE creators_name: Crary, FJ creators_name: Coates, AJ creators_name: Bertucci, CL creators_name: Neubauer, FM title: 3D global multi-species Hall-MHD simulation of the Cassini T9 flyby ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F63 keywords: Plasma spectrometer, Titans ionosphere, Hybrid simulation, Magnetosphere, Voyager-1, Flow note: Copyright 2007 by the American Geophysical Union abstract: The wake region of Titan is an important component of Titan's interaction with its surrounding plasma and therefore a thorough understanding of its formation and structure is of primary interest. The Cassini spacecraft passed through the distant downstream region of Titan on 18: 59: 30 UT Dec. 26, 2005, which is referred to as the T9 flyby and provided a great opportunity to test our understanding of the highly dynamic wake region. In this paper we compare the observational data (from the magnetometer, plasma analyzer and Langmuir probe) with numerical results using a 7-species Hall MHD Titan model. There is a good agreement between the observed and modeled parameters, given the uncertainties in plasma measurements and the approximations inherent in the Hall MHD model. Our simulation results also show that Hall MHD model results fit the observations better than the non-Hall MHD model for the flyby, consistent with the importance of kinetic effects in the Titan interaction. Based on the model results, we also identify various regions near Titan where Hall MHD models are applicable. date: 2007-12-01 publisher: AMER GEOPHYSICAL UNION official_url: http://dx.doi.org/10.1029/2007GL031627 vfaculties: VMPS oa_status: green language: eng primo: open primo_central: open_green article_type_text: Article verified: verified_batch elements_source: Web of Science elements_id: 97425 doi: 10.1029/2007GL031627 language_elements: EN lyricists_name: Coates, Andrew lyricists_id: AJCOA20 full_text_status: public publication: Geophysical Research Letters volume: 34 number: 24 article_number: L24S10 issn: 0094-8276 citation: Ma, YJ; Nagy, AF; Toth, G; Cravens, TE; Russell, CT; Gombosi, TI; Wahlund, JE; ... Neubauer, FM; + view all <#> Ma, YJ; Nagy, AF; Toth, G; Cravens, TE; Russell, CT; Gombosi, TI; Wahlund, JE; Crary, FJ; Coates, AJ; Bertucci, CL; Neubauer, FM; - view fewer <#> (2007) 3D global multi-species Hall-MHD simulation of the Cassini T9 flyby. Geophysical Research Letters , 34 (24) , Article L24S10. 10.1029/2007GL031627 <https://doi.org/10.1029/2007GL031627>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/140844/1/2007GL031627.pdf