19 citations · 72 across the 9 of their papers we have counts for
10 papers
Nonadditive entropy of the gravitational wave signal from GW150914
Daniel B. de Freitas, Cleo V. da Silva, Mackson M. F. Nepomuceno
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. W…
Multiscale structure of the gravitational wave signal from GW150914 based on the nonextensivity -triplet
C. V. da Silva, M. M. F. Nepomuceno, D. B. de Freitas
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. W…
Multifractal signatures of gravitational waves detected by LIGO
Daniel B. de Freitas, Mackson M. F. Nepomuceno, J. R. De Medeiros
We analyze the data from the 6 gravitational waves signals detected by LIGO through the lens of multifractal formalism using the MFDMA method, as well as shuffled and surrogate pro…
Multifractal detrended moving average analysis of Kepler stars with surface differential rotation traces
D. B. de Freitas, M. M. F. Nepomuceno, J. G. Cordeiro +2
A multifractal formalism is employed to analyse high-precision time-series data of \textit{Kepler} stars with surface differential rotation traces. The multifractal detrended movin…
New Suns in the Cosmos V: Stellar rotation and multifractality in active \textit{Kepler} stars
D. B. de Freitas, M. M. F. Nepomuceno, L. D. Alves Rios +2
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…
A nonextensive insight to the stellar initial mass function
D. B. de Freitas, R. T. Eufrasio, M. M. F. Nepomuceno +1
the present paper, we propose that the stellar initial mass distributions as known as IMF are best fitted by -Weibulls that emerge within nonextensive statistical mechanics. As…
New Suns in the Cosmos IV: the multifractal nature of stellar magnetic activity in \textit{Kepler} cool stars
D. B. de Freitas, M. M. F. Nepomuceno, M. Gomes de Souza +5
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 i…
New Suns in the Cosmos III: multifractal signature analysis
D. B. de Freitas, M. M. F. Nepomuceno, P. R. V. de Moraes Junior +7
In present paper, we investigate the multifractality signatures in hourly time series extracted from CoRoT spacecraft database. Our analysis is intended to highlight the possibilit…
Strong evidences for a nonextensive behavior of the rotation period in Open Clusters
D. B. de Freitas, M. M. F. Nepomuceno, B. B. Soares +1
Time-dependent nonextensivity in a stellar astrophysical scenario combines nonextensive entropic indices derived from the modified Kawaler's parametrization, and , obtai…
Time-dependent nonextensivity arising from the rotational evolution of solar-type stars
Jose R. P. Silva, Mackson M. F. Nepomuceno, Braulio B. Soares +1
Nonextensive formalism is a generalization of the Boltzmann-Gibbs statistics. In this formalism the entropic index q is a quantity characterizing the degree of nonextensivity, and…