Measurement of the power spectrum turnover scale from the cross-correlation between CMB lensing and Quaia

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 turnover of the matter power spectrum, associated with the size of the horizon at the epoch of matter-radiation equality. The t...

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Bibliographic Details
Main Authors: David Alonso, Oleksandr Hetmantsev, Giulio Fabbian, Anze Slosar, Kate Storey-Fisher
Format: Article
Language:English
Published: Maynooth Academic Publishing 2025-04-01
Series:The Open Journal of Astrophysics
Online Access:https://doi.org/10.33232/001c.136891
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