2 papers
gr-qc2024
Spatial anisotropies from long wavelength scalar and tensor modes
Jorge Noreña, Thiago S. Pereira, Sean K. Reynolds
We investigate the dominant physical effects of superhorizon fluctuations in a flat FLRW universe, focusing on whether the combined evolution of scalar and tensor adiabatic modes i…
astro-ph.CO2024
Fréchet Vectors as sensitive tools for blind tests of CMB anomalies
Ricardo G. Rodrigues, Thiago S. Pereira, Miguel Quartin
Cosmological data collected on a sphere, such as CMB anisotropies, are typically represented by the spherical harmonic coefficients, denoted as . The angular power spec…