On the generation of solar spicules and Alfvenic waves
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Description
In the image above obtained with the NASA’s spectrograph IRIS, can be seen in the bedge or limbo of the Sun the multitude of jets leaping the surface. In the center image, the numerical model is able to reproduce the jets. In the image below, taken with the Swedish Solar Telescope of the Roque de los Muchachos Observatory (La Palma), the jets are observed in the solar disk as filamentous structures of short duration and reflected in the spectrum shifted to blue because they are getting close to the Earth.