It is shown that Cowling's theorem that fluid motions cannot support an axisymmetic magnetic field does not rule out a dynamo as the cause of the Saturnian magnetic field. A dynamo model is developed for Saturn in which the observed features of the magnetic field are considered but strong ...
Abstract An axisymmetric octupole model of Saturn's planetary magnetic field is proposed here. This three parameter model, characterized by the Schmidt-normalized spherical harmonic coefficients g01= 21,535 nT, g02= 1,642 nT and g03= 2,743 nT, is extremely efficient in representing the main magn...
Secular variationNumerical dynamo modelPlanetary magnetismSaturn's nearly axisymmetric magnetic field posesPhysics of the Earth and Planetary Interiors: A Journal Devoted to Obsevational and Experimerntal Studies of the Chemistry and Physics of Planetary Interiors and Their Theoretical Interpretation...
The magnetic field of Saturn - Further studies of the Pioneer 11 observations Analysis of magnetic field observations by the Goddard Space Flight Center high-field flux gate magnetometer on the Pioneer 11 spacecraft during Saturn enc... Acu?a, M. H.,NF Ness,JEP Connerney - 《Journal of Geo...
Analysis of magnetic field data from the Pioneer 11, Voyager 1 and Voyager 2 spacecraft produced the first models of Saturn's internal field. One striking feature of these models is the lack of non axisymmetric terms, in apparent contradiction with Cowling's theorem on hydromagnetic dynamos. Res...
美 英 un.磁力线;磁场曲线 英汉 un. 1. 磁力线 2. 磁场曲线 释义: 全部,磁力线,磁场曲线
Earth's magnetic field originates in the outer core and extends out into the magnetosphere — a region of space that helps protect Earth from space weather.
of Saturn’s main auroral oval, indicating the lack of dependence on the main emission power. The concurrent magnetic field pulsations generally form a sawtooth shape, and the local field strength experiences a change of 0.2 to 2.0 nT (depending on the distance of Cassini). The quasiperiodic ...
The magnetic field of Saturn - Further studies of the Pioneer 11 observations Analysis of magnetic field observations by the Goddard Space Flight Center high-field flux gate magnetometer on the Pioneer 11 spacecraft during Saturn enc... Acu?a, M. H.,NF Ness,JEP Connerney - 《Journal of ...
Saturnmagnetic fieldmagnetospheric period oscillations[1] We examine magnetic field data from 10 apoapsis passes of the Cassini spacecraft during 2006 when the spacecraft explored the midnight and dawn sectors of Saturn's magnetotail to down-tail distances of 65 RS (Saturn radius, RS, is 60,268...