Journal article
Global MHD simulations of Saturn's magnetosphere at the time of Cassini approach
Geophysical research letters, Vol.32(20), pp.L20S06-n/a
10/2005
DOI: 10.1029/2005GL022835
Abstract
We present the results of a 3D global magnetohydrodynamic simulation of the magnetosphere of Saturn for the period of Cassini's initial approach and entry into the magnetosphere. We compare calculated bow shock and magnetopause locations with the Cassini measurements. In order to match the measured locations we use a substantial mass source due to the icy satellites (∼1 × 1028 s−1 of water product ions). We find that the location of bow shock and magnetopause crossings are consistent with previous spacecraft measurements, although Cassini encountered the surfaces further from Saturn than the previously determined average location. In addition, we find that the shape of the model bow shock and magnetopause have smaller flaring angles than previous models and are asymmetric dawn‐to‐dusk. Finally, we find that tilt of Saturn's dipole and rotation axes results in asymmetries in the bow shock and magnetopause and in the magnetotail being hinged near Titan's orbit (∼20 RS).
Details
- Title: Subtitle
- Global MHD simulations of Saturn's magnetosphere at the time of Cassini approach
- Creators
- K. C. Hansen - University of Michigan–Ann ArborA. J. Ridley - University of Michigan–Ann ArborG. B. Hospodarsky - University of IowaN. Achilleos - Imperial College LondonM. K. Dougherty - Imperial College LondonT. I. Gombosi - University of Michigan–Ann ArborG. Tóth - University of Michigan–Ann Arbor
- Resource Type
- Journal article
- Publication Details
- Geophysical research letters, Vol.32(20), pp.L20S06-n/a
- DOI
- 10.1029/2005GL022835
- ISSN
- 0094-8276
- eISSN
- 1944-8007
- Number of pages
- 5
- Language
- English
- Date published
- 10/2005
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984455556402771
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