3 papers
astro-ph.CO2026
Perturbative and numerical study of nonlinear relativistic effects in weak lensing
Matteo Magi, Francesca Lepori, Julian Adamek
The standard weak lensing formalism assumes that the lensing map relating the observed image of a source to its intrinsic shape depends only on the deflection angle. We show that t…
astro-ph.CO2025
Cosmic Dipoles from Large-Scale Structure Surveys
Jaiyul Yoo, Matteo Magi, Dragan Huterer
Large-scale structure surveys can be used to measure the dipole in the cosmic microwave background (CMB), in the luminosity distances inferred from type-Ia supernova observations,…
astro-ph.CO2025
Infrared Sensitivity of Cosmological Probes In The Presence of Axion Field Fluctuations
Matteo Magi, Robert Brandenberger, Jaiyul Yoo
We study the effects of long wavelength entropy fluctuations on cosmological probes such as galaxy clustering, luminosity distance, and CMB temperature anisotropies. Specifically,…