Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Nepomuceno, M. M. F."'
We study the first gravitational wave, GW150914, detected by advanced LIGO and constructed from the data of measurement of strain relative deformation of the fabric of spacetime. We show that the time series from the gravitational wave obeys Tsallis'
Externí odkaz:
http://arxiv.org/abs/2301.10036
Autor:
de Freitas, D. B., Nepomuceno, M. M. F., Cordeiro, J. G., Chagas, M. L. Das, De Medeiros, J. R.
A multifractal formalism is employed to analyse high-precision time-series data of \textit{Kepler} stars with surface differential rotation traces. The multifractal detrended moving average analysis (MFDMA) algorithm has been explored to characterize
Externí odkaz:
http://arxiv.org/abs/1906.11911
Autor:
de Freitas, D. B., Nepomuceno, M. M. F., Rios, L. D. Alves, Chagas, M. L. Das, De Medeiros, J. R.
In the present study, high-precision time series photometry for the active \emph{Kepler} stars is described in the language of multifractals. We explore the potential of using the rescaled range analysis ($R/S$) and multifractal detrended moving aver
Externí odkaz:
http://arxiv.org/abs/1906.07331
the present paper, we propose that the stellar initial mass distributions as known as IMF are best fitted by $q$-Weibulls that emerge within nonextensive statistical mechanics. As a result, we show that the Salpeter's slope of $\sim$2.35 is replaced
Externí odkaz:
http://arxiv.org/abs/1904.00253
Autor:
de Freitas, D. B., Nepomuceno, M. M. F., de Souza, M. Gomes, Leão, I. C., Chagas, M. L. Das, Costa, A. D., Martins, B. L. Canto, De Medeiros, J. R.
In the present study, we investigate the multifractal nature of a long-cadence time series observed by the \textit{Kepler} mission for a sample of 34 M dwarf stars and the Sun in its active phase. Using the Multifractal Detrending Moving Average algo
Externí odkaz:
http://arxiv.org/abs/1706.02935
Autor:
de Freitas, D. B., Nepomuceno, M. M. F., Junior, P. R. V. de Moraes, Lopes, C. E. F., Leão, I. C., Chagas, M. L. Das, Bravo, J. P., Costa, A. D., Martins, B. L. Canto, De Medeiros, J. R.
In present paper, we investigate the multifractality signatures in hourly time series extracted from CoRoT spacecraft database. Our analysis is intended to highlight the possibility that astrophysical time series can be members of a particular class
Externí odkaz:
http://arxiv.org/abs/1608.04432
Time-dependent nonextensivity in a stellar astrophysical scenario combines nonextensive entropic indices $q_{K}$ derived from the modified Kawaler's parametrization, and $q$, obtained from rotational velocity distribution. These $q$'s are related thr
Externí odkaz:
http://arxiv.org/abs/1408.0657
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Sep2019, Vol. 488 Issue 3, p3274-3297, 24p
Publikováno v:
Europhysics Letters; Mar2019, Vol. 125 Issue 6, p1-5, 5p
Akademický článek
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