Why the Sun’s atmosphere is hotter than its surface

17 junio 2015

How can the temperature of the Sun’s atmosphere be as high as 1 million degrees Celsius when its surface temperature is only around 6000°C? By simulating the evolution of part of the Sun’s interior and exterior, researchers have identified the mechanisms that provide sufficient energy to heat the solar atmosphere. A layer beneath the Sun’s surface, acting as a pan of boiling water, is thought to generate a small-scale magnetic field as an energy reserve which, once it emerges from the star, heats the successive layers of the solar atmosphere via networks of mangrove-like magnetic roots and branches.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/un8VfYoH8xA/150617091757.htm

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