829 citations · 3.5k across the 33 of their papers we have counts for
5 papers · 1 filter
Beyond CDM: Problems, solutions, and the road ahead
Philip Bull, Yashar Akrami, Julian Adamek +37
Despite its continued observational successes, there is a persistent (and growing) interest in extending cosmology beyond the standard model, CDM. This is motivated by a range o…
Constraints on deviations from CDM within Horndeski gravity
Emilio Bellini, Antonio J. Cuesta, Raul Jimenez +1
Recent anomalies found in cosmological datasets such as the low multipoles of the Cosmic Microwave Background or the low redshift amplitude and growth of clustering measured by e.g…
Signatures of Horndeski gravity on the Dark Matter Bispectrum
Emilio Bellini, Raul Jimenez, Licia Verde
We present a detailed study of second-order matter perturbations for the general Horn- deski class of models. Being the most general scalar-tensor theory having second-order equati…
Non-linear evolution of the BAO scale in alternative theories of gravity
Emilio Bellini, Miguel Zumalacarregui
The scale of Baryon Acoustic Oscillations (BAO) imprinted in the matter power spectrum provides an almost-perfect standard ruler: it only suffers sub-percent deviations from fixed…
Limits of Quasi-Static Approximation in Modified-Gravity Cosmologies
Ignacy Sawicki, Emilio Bellini
We investigate the limits of applicability of the quasi-static approximation in cosmologies featuring general models of dark energy or modified gravity. We show that, at best, the…