17 citations · 18 across the 3 of their papers we have counts for
6 papers
Horndeski stars
Juan Barranco, Javier Chagoya, Alberto Diez-Tejedor +2
We establish the existence of time-dependent solitons in a modified gravity framework, which is defined by the low energy limit of theories with a weakly broken galileon symmetry a…
BTZ entropy from topological M-theory
Javier Chagoya, Graciela Reyes-Ahumada, M. Sabido
By determining the relation between topological M-theory and the Chern-Simons actions for a gauge field constructed from the Lie algebra of either SL(2,R)x SL(2,R) or SL(2,C)x SL(2…
Compact objects in unimodular gravity
J. A. Astorga-Moreno, Javier Chagoya, J. C. Flores-Urbina +1
Unimodular gravity provides a theoretical framework that allows for non-conservation of energy-momentum, with possible implications for the cosmological constant problem. It is the…
A new scalar-tensor realization of Hořava-Lifshitz gravity
Javier Chagoya, Gianmassimo Tasinato
We discuss a new covariant scalar-tensor system aimed to realise Hořava proposal for a power-counting renormalizable theory of gravity, with the special feature of not propagating…
Compact objects in scalar-tensor theories after GW170817
Javier Chagoya, Gianmassimo Tasinato
The recent observations of neutron star mergers have changed our perspective on scalar- tensor theories of gravity, favouring models where gravitational waves travel at the speed o…
Conformal Anisotropic Quantum Cosmology
J. F. Chagoya, M. Sabido
In this paper we apply the ideas put forward by Hořava, and introduce anisotropic transformations to cosmology. We start with the Kantowski-Sachs cosmological model and impose anis…