3 papers
astro-ph.CO2019
Planck 2018 results. V. CMB power spectra and likelihoods
Planck Collaboration, N. Aghanim, Y. Akrami +165
This paper describes the 2018 Planck CMB likelihoods, following a hybrid approach similar to the 2015 one, with different approximations at low and high multipoles, and implementin…
astro-ph.CO2019
Cosmological constraints on post-Newtonian parameters in effectively massless scalar-tensor theories of gravity
M. Rossi, M. Ballardini, M. Braglia +4
We study the cosmological constraints on the variation of the Newton's constant and on post-Newtonian parameters for simple models of scalar-tensor theory of gravity beyond the ext…
astro-ph.CO2018
Isocurvature fluctuations in the effective Newton's constant
D. Paoletti, M. Braglia, F. Finelli +2
We present a new isocurvature mode present in scalar-tensor theories of gravity that corresponds to a regular growing solution in which the energy of the relativistic degrees of fr…