29 citations · 48 across the 5 of their papers we have counts for
6 papers
Matter density perturbations in Quadratic Gravity
Pedro Bessa
We investigate linear matter-density perturbations in full quadratic gravity. Working in the longitudinal gauge and adopting the sub-horizon and quasi-static approximations, we obt…
SLSim: a strong lensing population simulation package
Narayan Khadka, Simon Birrer, Henry Best +45
Gravitational lensing offers unique insights into cosmology by bending light around massive objects. Strong gravitational lensing, in particular, produces magnified and often multi…
Perturbations of Cosmological Redshift Drift
Pedro Bessa, Ruth Durrer, Dennis Stock
In this paper we calculate the linear perturbations of the cosmological redshift drift. We show explicitly that our expressions are gauge-invariant and compute the power spectrum o…
Strong Gravitational Lensing in Horndeski theory
Pedro Bessa
In this paper we build the general formalism of gravitational lensing in luminal Horndeski theories, deriving the Jacobi matrix equation and the general angular diameter distance i…
Gravitational lensing in a universe with matter and a cosmological constant
Pedro Bessa, Oliver F. Piattella
We extend the results obtained in \cite{Piattella_2016, mcvittie_2015} and \cite{Park_2008} for gravitational lensing in the McVittie metric by including the effect of the transiti…
Observational constraints on Starobinsky cosmology from cosmic expansion and structure growth data
Pedro Bessa, Marcela Campista, Armando Bernui
The unknown physical nature of the Dark Energy motivates in cosmology the study of modifications of the gravity theory at large distances. One of these types of modifications is to…