2024
DOI: 10.1088/1475-7516/2024/06/012
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Growth history and quasar bias evolution at z < 3 from Quaia

Giulia Piccirilli,
Giulio Fabbian,
David Alonso
et al.

Abstract: We make use of the Gaia-unWISE quasar catalogue, Quaia, to constrain the growth history out to high redshifts from the clustering of quasars and their cross-correlation with maps of the Cosmic Microwave Background (CMB) lensing convergence. Considering three tomographic bins, centred at redshifts z̅i = [0.69, 1.59, 2.72], we reconstruct the evolution of the amplitude of matter fluctuations σ 8(z) over the last ∼ 12 billion years of cosmic history. In particular, we make one… Show more

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