Relation between families of granules, mesogranules and photospheric network

Details Relation between families of granules, mesogranules and photospheric network Relation between families of granules, mesogranules and photospheric network

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...419..757r&link_type=abstract

Astronomy and Astrophysics, v.419, p.757-762 (2004)

Astronomy and Astrophysics

Astrophysics

17

Sun: Photosphere, Sun: Granulation

Scientific paper

The analysis of a solar granulation 3-h time sequence obtained at the Pic du Midi Observatory confirms the existence of Trees of Fragmenting Granules (TFG). The TFG lifetime histogram is fitted by a power law with an exponent equal to -1.68. The positive divergences (i.e. mesogranules) come from several families that are visible at different stages of the mesogranule evolution. We observe a good coincidence between the cork (passive scalars) distribution and the TFG boundaries. Thus, TFGs seem to play a role in the diffusion of the magnetic elements on the Sun surface.

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