14 citations · 27 across the 8 of their papers we have counts for
8 papers
Multifractal charactarization as a function of timescale in the light curves with planetary signal observed by the kepler mission
F. J. S. Lima Filho, V. M. B. Ferreira, P. C. F. da Silva Filho +5
Astrophysical data, in the domains of time, involve a wide range of stellar variability phenomena, among them the magnetic activity of the order of a few hours until the signature…
Can gyrochronological ages be affected by the variation of the magnetic braking index?
Daniel B. de Freitas
The present work attempts to analytically explain the effects on the moment of inertia, , caused by the evolution of stellar velocity in main-sequence stars. We have found that…
A new insight on stellar age I. Theoretical trends with gyro-age and rotation
D. B. de Freitas
In this first work attempts to analytically explain the effects on the magnetic braking index, , caused by the evolution of stellar velocity in main-sequence stars, and estimate…
Investigating the signatures of long-range persistence in seismic sequences along Circum-Pacific subduction zones
D. B. de Freitas, G. S. França, T. Scheerer +2
In the present paper, we analyze the signatures of long-range persistence in seismic sequences along Circum-Pacific subduction zones, from Chile to Kermadec, extracted from the Nat…
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…
Debris disks among Kepler solar rotational analog stars
R. Silva Sobrinho, A. D. Da Costa, B. L. Canto Martins +8
Observations of circumstellar disks provide a powerful tool for our understanding of planetary systems dynamics. Analogs to the Solar System asteroid belts, debris disks result fro…
On the incidence of planet candidates in open clusters and a planet confirmation
I. C. Leão, B. L. Canto Martins, S. Alves +7
Detecting exoplanets in clusters of different ages is a powerful tool for understanding a number of open questions, such as how the occurrence rate of planets depends on stellar me…
New Suns in the Cosmos II: Differential rotation in Kepler Sun-like stars
M. L. Das Chagas, J. P. Bravo, A. D. Costa +9
The present study reports the discovery of Sun-like stars, namely main-sequence stars with , and rotation periods similar to solar values, presentin…