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Deviation from Gaussianity in the cosmic microwave background temperature fluctuations
Armando Bernui, Constantino Tsallis, Thyrso Villela
Recent measurements of the temperature fluctuations of the cosmic microwave background (CMB) radiation from the WMAP satellite provide indication of a non-Gaussian behavior. Althou…
Temperature Fluctuations of the Cosmic Microwave Background Radiation: A Case of Nonextensivity?
Armando Bernui, Constantino Tsallis, Thyrso Villela
Temperature maps of the Cosmic Microwave Background (CMB) radiation, as those obtained by the Wilkinson Microwave Anisotropy Probe (WMAP), provide one of the most precise data sets…
Fluxes of cosmic rays: A delicately balanced stationary state
Constantino Tsallis, Joao C. Anjos, Ernesto P. Borges
The analysis of cosmic rays fluxes as a function of energy reveals a {\it knee} slightly below eV and an {\it ankle} close to eV. Their physical origins remain…
Non-Extensive Thermostatistical Approach of the Peculiar Velocity Function of Galaxy Clusters
A. Lavagno, G. Kaniadakis, M. Rego-Monteiro +2
We show that the observational data recently provided by Giovanelli et al. (1996 a, b) and discussed by Bahcall and Oh (1996) concerning the velocity distribution of clusters of ga…