Dichotomic model for describing the solar granulation dynamics

Rusu, Mircea (2005) Dichotomic model for describing the solar granulation dynamics. In: British-Romanian-Hungarian N+N+N Workshop for Young Researchers On Plasma- and Astrophysics: from laboratory to outer space Edited by I. Ballai, E. Forgács-Dajka, A. Marcu and K. Petrovay. Publications of the Astronomy Department of the Eötvös University (15). ELTE Sokszorosítóüzeme, Budapest, pp. 59-69.

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Abstract

In the present communication, we describe a simple model for the observed solar granulation. The proposed model is a phenomenological one, and describes the dynamics of granulation as complex changing patterns observed on the Sun's surface. Based on some observed facts, we describe the variability of the granules form and the statistics observed, as a continuous process of "splitting" each granule in two pieces, in a roughly constant area ratio. This process is named a dichotomic process, and produces in time, granules of different forms and dimensions. Simulating such kind of dichotomic "fragmentation" of the granules, starting with a given initial distribution, we can obtain the distribution of the granules area at a given moment of time that can be compared with the observed statistics.

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