4 papers
Neutron stars in a conservative gravity
Ronaldo V. Lobato, Geanderson A. Carvalho, Carlos E. C. Montaña +1
We investigate a conservative formulation of gravity motivated by a key limitation of several existing approaches: the gravitational function is often reconstructed from a…
Rotating strange dwarfs and their indistinguishability from white dwarfs
Edson Otoniel, José D. V. Arbañil, Geanderson A. Carvalho +1
We investigate the structure of strange dwarfs, modeled as hybrid compact stars composed of a self bound strange quark matter core surrounded by a white dwarf like crust, within a…
Effects of light-mass fermionic dark matter on the equilibrium and stability of white dwarfs
G. A. Carvalho, J. D. V. Arbañil, J. G. Coelho
White dwarfs (WDs) can be used as laboratories to test strong gravity and high-density regimes, once their equation of state is not so uncertain as the one of neutron stars. This m…
A MOND model applied to the rotation curve of galaxies
Ana C. M. Ciqueira, Geanderson A. Carvalho, Paulo H. Faccin +1
In this work, we propose a modified Newton dynamics (MOND) model to study the rotation curves of galaxies. The model is described by an arctangent interpolating function and it fit…