3 papers
astro-ph.CO2025
The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models
Erminia Calabrese, J. Colin Hill, Hidde T. Jense +169
We use new cosmic microwave background (CMB) primary temperature and polarization anisotropy measurements from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) to test fo…
astro-ph.CO2025
Current constraints on cosmological scenarios with very low reheating temperatures
Nicola Barbieri, Thejs Brinckmann, Stefano Gariazzo +3
We present a comprehensive analysis of the effects of models with very low reheating scenarios () on the cosmological observables and deri…
astro-ph.CO2024
Refining the nonlinear modelling of primordial oscillatory features
Mario Ballardini, Nicola Barbieri
Primordial oscillatory features in the power spectrum of curvature perturbations are sensitive probes of the dynamics of the early Universe and can provide insights beyond the stan…