The Meridional Magnetic Field Lines of Saturn
Abstrak
AbstractThe magnetometer data for the Cassini mission (2004–2016) are used to derive a model of Saturn's meridional magnetic field lines. Using a bin map of the Bρ and Bz field components, the field lines can be traced from the equator to high latitudes in the inner magnetosphere. The traces reveal a magnetic field greatly compressed on the dayside and highly elongated on the nightside, which are presumably the effects of solar wind compression and viscous flow around the magnetosphere. A model of the traced field lines can accommodate this day‐night asymmetry and offer a way to connect various places in the magnetosphere. This model can be adjusted for magnetodisk warping by using solar latitude. The field line traces can be mapped down to the ionosphere using an offset dipole. The dayside magnetopause (L = 21) is mapped to colatitudes of ~13° in the north and ~16° in the south, while for L > 25 on the nightside, the mapped field lines approach asymptotic limits of ~16° in the north and ~18° in the south.
Penulis (1)
J. F. Carbary
Akses Cepat
- Tahun Terbit
- 2018
- Bahasa
- en
- Total Sitasi
- 4×
- Sumber Database
- CrossRef
- DOI
- 10.1029/2018ja025628
- Akses
- Open Access ✓