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Euclid preparation. XXVII. Covariance model validation for the 2-point correlation function of galaxy clusters
Euclid Collaboration, A. Fumagalli, A. Saro +191
Aims. We validate a semi-analytical model for the covariance of real-space 2-point correlation function of galaxy clusters. Methods. Using 1000 PINOCCHIO light cones mimicking the…
Euclid preparation. XXV. The Euclid Morphology Challenge -- Towards model-fitting photometry for billions of galaxies
Euclid Collaboration, E. Merlin, M. Castellano +218
The ESA Euclid mission will provide high-quality imaging for about 1.5 billion galaxies. A software pipeline to automatically process and analyse such a huge amount of data in real…
Constraints on the cosmic expansion rate at redshift 2.3 from the Lyman- forest
Andrei Cuceu, Andreu Font-Ribera, Seshadri Nadathur +2
We determine the product of the expansion rate and angular-diameter distance at redshift from the anisotropy of Lyman- (Ly) forest correlations measured by the Sloan…
The Alcock-Paczyński effect from Lyman- forest correlations: Analysis validation with synthetic data
Andrei Cuceu, Andreu Font-Ribera, Paul Martini +6
The three-dimensional distribution of the Ly forest has been extensively used to constrain cosmology through measurements of the baryon acoustic oscillations (BAO) scale. Howeve…
Constraining νΛCDM with density-split clustering
Enrique Paillas, Carolina Cuesta-Lazaro, Pauline Zarrouk +6
The dependence of galaxy clustering on local density provides an effective method for extracting non-Gaussian information from galaxy surveys. The two-point correlation function (2…
The DESI Survey Validation: Results from Visual Inspection of the Quasar Survey Spectra
David M. Alexander, Tamara M. Davis, E. Chaussidon +69
A key component of the Dark Energy Spectroscopic Instrument (DESI) survey validation (SV) is a detailed visual inspection (VI) of the optical spectroscopic data to quantify key sur…