52 citations · 210 across the 10 of their papers we have counts for
10 papers
White dwarfs with a surface electrical charge distribution: Equilibrium and stability
G. A. Carvalho, José D. V. Arbañil, R. M. Marinho +1
The equilibrium configuration and the radial stability of white dwarfs composed of charged perfect fluid are investigated. These cases are analyzed through the results obtained fro…
General Relativistic effects in the structure of massive white dwarfs
G. A. Carvalho, R. M. Marinho, M. Malheiro
In this work we investigate the structure of white dwarfs using the Tolman-Oppenheimer-Volkoff equations and compare our results with those obtained from Newtonian equations of gra…
Dynamical instability of white dwarfs and breaking of spherical symmetry under the presence of extreme magnetic fields
J. G. Coelho, R. M. Marinho, M. Malheiro +4
Massive, highly magnetized white dwarfs with fields up to G have been observed and theoretically used for the description of a variety of astrophysical phenomena. Ultramagne…
Data Analysis of Gravitational Waves Signals from Millisecond Pulsars
F. G. de Oliveira, R. M. Marinho, J. G. Coelho +1
The present work is devoted to the detection of monochromatic gravitational wave signals emitted by pulsars using ALLEGRO's data detector. We will present the region (in frequency)…
Compact stars with a quark core within NJL model
C. H. Lenzi, A. S. Schneider, C. Providência +1
An ultraviolet cutoff dependent on the chemical potential as proposed by Casalbuoni {\it et al} is used in the su(3) Nambu-Jona-Lasinio model. The model is applied to the descripti…
Investigation of the existence of hybrid stars using Nambu-Jona-Lasinio models
J. G. Coelho, C. H. Lenzi, M. Malheiro +2
We investigate the hadron-quark phase transition inside neutron stars and obtain mass-radius relations for hybrid stars. The equation of state for the quark phase using the standar…