48 citations · 346 across the 31 of their papers we have counts for
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astro-ph.SR2010★ 2 cited
Wavelet analysis of stellar rotation and other periodicities
D. B. de Freitas, I. de C. Leão, B. L. Canto Martins +1
The wavelet transform has been used for numerous studies in astrophysics, including signal--noise periodicity and decomposition as well as the signature of differential rotation in…
astro-ph.SR2010★ 21 cited
Nonextensivity in the solar magnetic activity during the increasing phase of solar Cycle 23
D. B. de Freitas, J. R. De Medeiros
In this paper we analyze the behavior of the daily Sunspot Number from the Sunspot Index Data Center (SIDC), the mean Magnetic Field strength from the National Solar Observatory/Ki…