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Mercury's magnetic field is weaker than Earth's because its core had cooled and solidified more quickly than Earth's. [14] Although Mercury's magnetic field is much weaker than Earth's magnetic field, it is still strong enough to deflect the solar wind, inducing a magnetosphere.
7 maj 2015 · Mercury is the only terrestrial planet other than Earth with an active, internally generated magnetic field. Results from the MESSENGER spacecraft indicate that the field is almost as old as the planet. Johnson et al. took advantage of close flybys to extract evidence of an ancient magnetic field.
30 wrz 2011 · We consider the magnetic field (B) in cylindrical Mercury solar orbital (MSO) coordinates (ρ, ϕ, Z) MSO, where ZMSO is positive northward, ϕ MSO is zero at the subsolar point and increases toward dusk, and ρ MSO is positive outward parallel to the equatorial plane.
4 lip 2017 · Mercury’s Magnetic Field. Credit: NASA Magnetic Fields: Much like Earth, Mercury has a significant, and apparently global, magnetic field, one which is about 1.1% the strength of...
29 lip 2014 · Earth and Mercury are both rocky planets with iron cores, but Mercury's interior differs from Earth's in a way that explains why the planet has such a bizarre magnetic field, UCLA planetary physicists and colleagues report.
8 gru 2021 · Recently, Takahashi et al., 2019 showed that a double-diffusive convecting shell surrounded by a thick thermally stably stratified layer can generate Mercury-like magnetic fields. Furthermore, numerical dynamo models of Mercury's magnetic field provide estimates of the size of Mercury's inner core.
14 gru 2012 · Although the field is primarily dipolar, and of the same polarity (termed normal polarity) as Earth's field, Mercury's surface magnetic field strength is only about 1% that of Earth's [Ness et al., 1974], corresponding to a dipole moment that is smaller by a factor of about 1000.
