Author

G. Cañas-Herrera

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Review Open access Sep 2026

Euclid preparation. CXII. Baryon acoustic oscillations extraction techniques: comparison and optimisation

We present the first end-to-end validation of the Euclid baryon acoustic oscillation (BAO) analysis pipeline, encompassing density-field reconstruction, two-point correlation function measurement, and cosmological parameter inference. Using eight Euclid-like mock catalogues extracted from each of the four snapshots of...

E. Sarpa, A. Veropalumbo, M. Bonici et al. · Astronomy & Astrophysics · 0 citations

Review Sep 2026

Merlin: Fast and flexible 3x2pt cosmology with simulation-based inference

We present Merlin, a simulation-based inference (SBI) pipeline to perform cosmological analyses of 3x2pt summary statistics: cosmic shear, galaxy clustering and the cross-correlation power spectra. Our approach combines Marginal Neural Ratio Estimation (MNRE) with 3x2pt angular power spectra predictions from the cloeli...

Alexandra Wernersson, G. Franco-Abellán, G. Cañas-Herrera · 0 citations

Review Sep 2026

Euclid. A two-point correlation approach to diagnosing star-related systematics in the Euclid spectroscopic survey

The Euclid spectroscopic survey will measure galaxy clustering with unprecedented precision, requiring stringent control of observational and instrumental systematics. Star-related effects may contaminate spectroscopic images through photometric persistence and imperfect masking of stars. We characterized their impact...

Euclid Collaboration I. Risso, B. Granett, E. Branchini et al. · 0 citations