Astronomy and Astrophysics – Astrophysics – Earth and Planetary Astrophysics
Scientific paper
2009-01-07
Europhys.Lett.83:59001,2008
Astronomy and Astrophysics
Astrophysics
Earth and Planetary Astrophysics
Scientific paper
10.1209/0295-5075/83/59001
The geo and solar magnetic fields have long been thought to be very different objects both in terms of spatial structure and temporal behavior. The recently discovered field structure of a fully convective star is more reminiscent of planetary magnetic fields than the Sun's magnetic field (Donati J.-F. et al., Science, 311 (2006) 633), despite the fact that the physical and chemical properties of these objects clearly differ. This observation suggests that a simple controlling parameter could be responsible for these different behaviors. We report here the results of three-dimensional simulations which show that varying the aspect ratio of the active dynamo region can yield sharp transition from Earth-like steady dynamos to Sun-like dynamo waves.
Dormy Emmanuel
Goudard Laure
No associations
LandOfFree
Relations between dynamo-region geometry and the magnetic behavior of stars and planets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Relations between dynamo-region geometry and the magnetic behavior of stars and planets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Relations between dynamo-region geometry and the magnetic behavior of stars and planets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-720423