184 citations · 266 across the 4 of their papers we have counts for
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Different faces of the phantom
K. A. Bronnikov, J. C. Fabris, S. V. B. Gonçalves
The SNe type Ia data admit that the Universe today may be dominated by some exotic matter with negative pressure violating all energy conditions. Such exotic matter is called {\it…
Cold black holes and conformal continuations
K. A. Bronnikov, M. S. Chernakova, J. C. Fabris +2
We study Einstein gravity minimally coupled to a scalar field in a static, spherically symmetric space-time in four dimensions. Black hole solutions are shown to exist for a phanto…
Chaplygin gas with non-adiabatic perturbations
W. Zimdahl, J. C. Fabris
Perturbations in a Chaplygin gas, characterized by an equation of state , may acquire non-adiabatic contributions if spatial variations of the parameter are admitted.…
Cold Black Holes in the Einstein-Scalar Field System
K. A. Bronnikov, J. C. Fabris, N. Pinto-Neto +1
We study Einstein gravity coupled to a massless scalar field in a static spherically symmetric space-time in four dimensions. Black hole solutions exist when the kinetic energy of…