Sunspots are in many ways similar to terrestrial vortices

Details Sunspots are in many ways similar to terrestrial vortices Sunspots are in many ways similar to terrestrial vortices

2011-10-06

arxiv.org/abs/1110.1215v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

11 pages, 2 figures

Scientific paper

In this letter we identify similarities amongst sunspots and terrestrial vortices. The dark appearance of the central part of any sunspot is currently justified by an anticipated cooling effect experienced by the ionized gas. However, it cannot single-handedly reconcile the halo that surrounds the penumbra, the subsequent second dim ring that could be possibly followed by a second halo. In antithesis, light refraction due to density variations in a compressible whirl can give reason for all of these manifestations. Certain data of Wilson's depression fit better the geometric depth profile of a two-celled vortex. The last provides a hurricane equivalent manifestation for the normal and reverse Evershed effect. There is compelling evidence that alike to atmospheric vortices sunspots do also spawn meso-cyclones.

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