362 citations · 5.2k across the 125 of their papers we have counts for
6 papers · 1 filter
Stellar structure models in modified theories of gravity: lessons and challenges
Gonzalo J. Olmo, Diego Rubiera-Garcia, Aneta Wojnar
The understanding of stellar structure represents the crossroads of our theories of the nuclear force and the gravitational interaction under the most extreme conditions observably…
Minimum main sequence mass in quadratic Palatini gravity
Gonzalo J. Olmo, Diego Rubiera-Garcia, Aneta Wojnar
General Relativity yields an analytical prediction of a minimum required mass of roughly for a star to stably burn sufficient hydrogen to fully compensat…
Geometric inequivalence of metric and Palatini formulations of General Relativity
Cecilia Bejarano, Adria Delhom, Alejandro Jiménez-Cano +2
Projective invariance is a symmetry of the Palatini version of General Relativity which is not present in the metric formulation. The fact that the Riemann tensor changes nontrivia…
New scalar compact objects in Ricci-based gravity theories
Victor I. Afonso, Gonzalo J. Olmo, Emanuele Orazi +1
Taking advantage of a previously developed method, which allows to map solutions of General Relativity into a broad family of theories of gravity based on the Ricci tensor (Ricci-b…
Einstein-Cartan-Dirac gravity with symmetry breaking
Francisco Cabral, Francisco S. N. Lobo, Diego Rubiera-Garcia
Einstein-Cartan theory is an extension of the standard formulation of General Relativity where torsion (the antisymmetric part of the affine connection) is non-vanishing. Just as t…
Novel couplings between nonmetricity and matter
Francisco S. N. Lobo, Tiberiu Harko, Tomi S. Koivisto +2
We present a novel theory of gravity, namely, an extension of symmetric teleparallel gravity. This is done by introducing a new class of theories where the nonmetricity is coup…