4 papers
Modified gravity or imperfect dark matter: a model-independent discrimination
Miguel Aparicio Resco, Antonio L. Maroto
We analyze how to parametrize general modifications of the dark matter perturbations equations in a model-independent way. We prove that a general model with an imperfect and non-c…
The Fisher gAlaxy suRvey cOde ()
Miguel Aparicio Resco, Antonio L. Maroto
The Fisher gAlaxy suRvey cOde () is a new public Python code that computes the Fisher matrix for galaxy surveys observables. The observables considered are the linea…
Testing for gravitational preferred directions with galaxy and lensing surveys
Miguel Aparicio Resco, Antonio L. Maroto
We analyze the sensitivity of galaxy and weak-lensing surveys to detect preferred directions in the gravitational interaction. We consider general theories of gravity involving add…
Parametrizing modified gravities with vector degrees of freedom: anisotropic growth and lensing
Miguel Aparicio Resco, Antonio L. Maroto
We consider the problem of parametrizing modified gravity theories that include an additional vector field in the sub-Hubble regime within the quasi-static approximation. We start…