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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/6510

Title: Universal persistence in astrophysical sources
Other Titles: Physica A: Statistical Mechanics and its Applications
Authors: Zebende, G. F.
Pereira, M. G.
Nogueira Júnior, E.
Moret, M. A.
Keywords: DFA;Astrophysical systems;Long-range power-law correlation
Issue Date: 15-Apr-2005
Publisher: Elsevier
Abstract: We study the temporal correlations in 412 light curves of X-ray sources present in the public data collected by the instrument All Sky Monitor on board of the satellite Rossi X-ray timing explorer. The temporal light curves were analyzed applying detrended fluctuation analysis. The fluctuation of the X-ray light curves coming from astrophysical systems present temporal self-affinity as an intrinsic behavior. We present the results from cataclysmic variables, X-ray binary systems, galaxies, pulsars and other X-ray sources independently and we observe a universal behavior in the long-range scaling exponent α.
Description: Trabalho completo: acesso restrito, p. 452–458
URI: http://www.repositorio.ufba.br/ri/handle/ri/6510
ISSN: 0378-4371
Appears in Collections:Artigos Publicados em Periódicos (FIS)

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