One model for producing bipolar or elliptical planetary nebulae assumes that the slow wind from the progenitor star is denser near the equatorial plane than along the poles 5,6,7,8. Such an asymmetry ...

We report on our continued efforts to understand and delineate the magnetic dynamo-induced behavior/variability of red dwarf (K5 V – M6 V) stars over their long lifetimes. These properties include: ...

The differential rotation between the Moon's core and mantle may have powered the ancient lunar dynamo, either continuously over several hundred million years or intermittently after large impacts.

For example, we know at which rotational rates the dynamo effect occurs and which magnetic field structures we can expect," says Giesecke. The scientific community involved with dynamos is eagerly ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. This article is more than 8 years old. Astronomers now ...

NASA’s Kepler Space Telescope has made the most comprehensive-ever observations of another sun-like star’s internal dynamo, say researchers. Observations of the star HD 173701 are being hailed by the ...

The magnetic field of the Sun is generated by a dynamo effect caused by its convective and rotational movements. It will ...

Different stars can exhibit different levels of activity. The Sun's signs of solar activity are rather feeble on an astronomical scale. Other stars are up to ten times more active. While researchers ...