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The Venusian induced magnetosphere: A case study of plasma and magnetic field measurements on the Venus Express mission |
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| Authors: | E Kallio TL Zhang R Jarvinen P Janhunen J-A Sauvaud J-J Thocaven H Andersson K Brinkfeldt M Holmström M Yamauchi W Baumjohann AJ Coates DO Kataria KC Hsieh M Grande T Säles P Riihelä N Krupp JG Luhmann S Orsini A Mura M Maggi P Brandt K Szego RA Frahm JR Sharber P Bochsler |
| Institution: | a Finnish Meteorological Institute, Box 503, FIN-00101 Helsinki, Finland b Space Research Institute, Austrian Academy of Sciences, Schmiedlstr. 6, 8042 Graz, Austria c Swedish Institute of Space Physics, Box 812, SE-981 28 Kiruna, Sweden d Centre d’Etude Spatiale des Rayonnements, BP-4346, F-31028 Toulouse, France e Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamichara, Japan f Mullard Space Science Laboratory, University College London, Surrey RH5 6NT, UK g University of Arizona, Tucson, AZ 85721, USA h Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, UK i Department of Physical Sciences, University of Helsinki, P.O. Box 64, 00014 Helsinki, Finland j Space Physics Research Laboratory, University of Michigan, Ann Arbor, MI 48109-2143, USA k Max-Planck-Institut fuer Sonnensystemforschung, D-37191 Katlenburg-Lindau, Germany l Space Science Laboratory, University of California at Berkeley, Berkeley, CA 94720 7450, USA m Space Technology Ireland, National University of Ireland, Maynooth, Co. Kildare, Ireland n Instituto di Fisica dello Spazio Interplanetari, I-00133 Rome, Italy o Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723-6099, USA p Institute of Geophysics and Planetary Physics, University of California, 405 Hilgard Avenue, Los Angeles, CA 90095-1567, USA q KFKI Research Institute for Particle and Nuclear Physics, H-1525, Box 49, Budapest, Hungary r Southwest Research Institute, San Antonio, TX 7228-0510, USA s Physikalisches Institut, University of Bern, CH-3012 Bern, Switzerland t Department of Physics, West Virginia University, Morgantown, WV 26506-6315, USA |
| Abstract: | Plasma and magnetic field measurements made onboard the Venus Express on June 1, 2006, are analyzed and compared with predictions of a global model. It is shown that in the orbit studied, the plasma and magnetic field observations obtained near the North Pole under solar minimum conditions were qualitatively and, in many cases also, quantitatively in agreement with the general picture obtained using a global numerical quasi-neutral hybrid model of the solar wind interaction (HYB-Venus). In instances where the orbit of Venus Express crossed a boundary referred to as the magnetic pileup boundary (MPB), field line tracing supports the suggestion that the MPB separates the region that is magnetically connected to the fluctuating magnetosheath field from a region that is magnetically connected to the induced magnetotail lobes. |
| Keywords: | Venus Venus-solar wind interaction Planetary magnetospheres Solar wind Numerical modelling |
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