3 papers
astro-ph.CO2026
Improving constraints on primordial non-Gaussianity from Quaia with a new cosmological observable: angular redshift fluctuations
José Ramón Bermejo-Climent, Carlos Hernández-Monteagudo, Alba Crespo-Pérez +4
Angular redshift fluctuations (ARF) are a new cosmological observable, recently proposed in the literature. It measures the 2D angular deviations of the average redshift of a given…
astro-ph.CO2026
Constraints on primordial non-Gaussianity from Quaia
Giulio Fabbian, David Alonso, Kate Storey-Fisher +1
We analyse the large-scale angular clustering of quasars in the \gaia-\unwise quasar catalog, \quaia, and their cross-correlation with maps of the lensing convergence of the Cosmic…
astro-ph.CO2025
Measurement of the power spectrum turnover scale from the cross-correlation between CMB lensing and Quaia
David Alonso, Oleksandr Hetmantsev, Giulio Fabbian +2
We use the projected clustering of quasars in the Gaia-unWISE quasar catalog, Quaia, and its cross-correlation with CMB lensing data from Planck, to measure the large-scale turnove…