The sun may have a dual personality, simulations suggest

In the “alternate” cycle (bottom), that dynamo forms strongly in one hemisphere over the other and then wanders for several years. When the researchers ran their simulation, they first found that the solar dynamo formed to the north and south of the sun’s equator. Following a regular cycle, that dynamo moved toward the equator and stopped, then reset in close agreement with actual observations of the sun. ” That pattern could be a fluke of the model, Matilsky said, but it might also point to real, and previously unknown, behavior of the solar dynamo. But he said that the team’s results could, one day, help to explain the cause of the peaks and dips in the sun’s activity—patterns that have huge implications for climate and technological societies on Earth.

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