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Author(s): R. Gonçalves
A. A. Pinto
N. Stollenwerk
Title: Cycles and universality in sunspot number fluctuations
Issue Date: 2009
Abstract: We analyze the famous Wolf's sunspot numbers. Surprisingly, we discovered that the distribution of the sunspot number fluctuations for both the ascending and descending phases is close to the universal nonparametric Bramwell-Holdsworth-Pinton (BHP) distribution. Since the BHP probability density function appears in several other physical phenomena, our result reveals a universal feature of the Wolf's sunspot numbers.
Subject: Física
Physical sciences
Scientific areas: Ciências exactas e naturais::Física
Natural sciences::Physical sciences
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FCUP - Artigo em Revista Científica Internacional
FEUP - Artigo em Revista Científica Internacional

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