A. Eggemeier

Euclid preparation. CXIII. Simulated galaxy catalogues for non-standard cosmological models

M. -A. Breton, P. Fosalba, S. Avila, M. Baldi et autres

Stage-IV galaxy surveys will provide the opportunity to test cosmological models and the underlying theory of gravity with unparalleled precision. In this context, it is crucial for the Euclid mission to leverage its spectroscopic and photometric probes to systematically investigate and incorporate …

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

E. Sarpa, A. Veropalumbo, M. Bonici, M. Kärcher et autres

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 the and , …

Euclid preparation. CVIII. Galaxy power spectrum modelling in redshift space

B. Camacho Quevedo, M. Crocce, M. Pellejero Ibañez, R. E. Angulo et autres

Accurate modelling of redshift-space distortions (RSDs) is essential for maximising the cosmological information extracted from large galaxy redshift surveys. In preparation for the forthcoming analysis of the Euclid spectroscopic data, we investigated three approaches to modelling RSD effects on the power spectrum …

ch, fr, gb (code pays fourni par la source)

Euclid preparation

B. Camacho Quevedo, M. Crocce, M. Pellejero Ibañez, R. E. Angulo et autres

Accurate modelling of redshift-space distortions (RSDs) is essential for maximising the cosmological information extracted from large galaxy redshift surveys. In preparation for the forthcoming analysis of the Euclid spectroscopic data, we investigated three approaches to modelling RSD effects on the power spectrum …

it, es, gb, de, fr, ch, il, us, no, dk, fi (code pays fourni par la source)

Euclid preparation. CI. Galaxy 2-point correlation function modelling in redshift space

M. Kärcher, M. -A. Breton, S. de la Torre, A. Veropalumbo et autres

The Euclid satellite will measure spectroscopic redshifts for tens of millions of emission-line galaxies, allowing for one of the most precise tests of the cosmological model. In the context of Stage-IV surveys such as Euclid, the 3D clustering of galaxies plays a …

ch, fi, fr (code pays fourni par la source)

Euclid preparation

M. Kärcher, M. -A. Breton, S. de la Torre, A. Veropalumbo et autres

The Euclid satellite will measure spectroscopic redshifts for tens of millions of emission-line galaxies, allowing for one of the most precise tests of the cosmological model. In the context of Stage-IV surveys such as Euclid , the 3D clustering of galaxies plays …

fr, it, de, es, gb, ch, il, nl, us, no, dk, fi (code pays fourni par la source)

Euclid preparation: Testing multi-field inflation with galaxy power spectrum and bispectrum

Euclid Collaboration, D. Linde, A. Moradinezhad Dizgah, G. Parimbelli et autres

Primordial non-Gaussianity (PNG) is a powerful probe of the origin of cosmic structure. Stage-IV surveys like \Euclid will measure galaxy $2$- and $3$-point clustering at high signal-to-noise, whose exploitation requires robust joint analysis. We prepare for Euclid's spectroscopic sample by validating a …

Euclid preparation. Three-dimensional galaxy clustering in configuration space: Three-point correlation function estimation

A Veropalumbo, M Moresco, F Marulli, E Branchini et autres

International audience

Euclid preparation: Testing multi-field inflation with galaxy power spectrum and bispectrum

D. Linde, A. Moradinezhad Dizgah, G. Parimbelli, K. Pardede et autres

International audience

\textit{Euclid} preparation. Baryon acoustic oscillations extraction techniques: comparison and optimisation

Euclid Collaboration, E. Sarpa, A. Veropalumbo, M. Bonici et autres

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 from each of four Flagship I snapshots, designed to reproduce the expected …

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

E Sarpa, A Veropalumbo, M Bonici, M. Kärcher et autres

International audience

Euclid preparation

P. Monaco, M. Y. Elkhashab, B. R. Granett, J. Salvalaggio et autres

We present the strategy used to identify and mitigate potential sources of angular systematics in the Euclid spectroscopic galaxy survey, and we quantify their impact on galaxy clustering measurements and cosmological parameter estimation. We first surveyed the Euclid processing pipeline to identify …

it, us, fr, de, jp, ca, pt, nl, es, gb, ch, no, dk, fi (code pays fourni par la source)