3 papers
astro-ph.CO2025
One-loop kernels in scale-dependent Horndeski theory
Ziyang Zheng, Hanqiong Jia, Bilal Tüdes +3
We investigate the nonlinear evolution of cosmological perturbations in theories with scale-dependent perturbation growth, first in general and then focusing on Horndeski gravity.…
astro-ph.CO2025
Reconstructing the dark energy density in light of DESI BAO observations
Maria Berti, Emilio Bellini, Camille Bonvin +3
In light of the evidence for dynamical dark energy (DE) found from the most recent Dark Energy Spectroscopic Instrument (DESI) baryon acoustic oscillation (BAO) measurements, we pe…
astro-ph.CO2025
Modified gravity constraints with Planck ISW-lensing bispectrum
Anton Chudaykin, Martin Kunz, Julien Carron
We present updated constraints on modified gravity by including the Integrated Sachs-Wolfe (ISW) effect from CMB lensing-CMB temperature cross-correlations, based on the latest Pla…