Astrophysical: Cosmology

  • Publication
    Dark Energy Survey Year 3 results: magnification modelling and impact on cosmological constraints from galaxy clustering and galaxy-galaxy lensing
    We study the effect of magnification in the Dark Energy Survey Year 3 analysis of galaxy clustering and galaxy-galaxy lensing, using two different lens samples...
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    Dark Energy Survey year 3 results: point spread function modelling
    We introduce a new software package for modelling the point spread function (PSF) of astronomical images, called PIFF (PSFs In the Full FOV), which we apply to...
  • Publication
    Dark Energy Survey Year 3 results: Simulation-based cosmological inference with wavelet harmonics, scattering transforms, and moments of weak lensing mass maps. II. cosmological results
    We present a simulation-based cosmological analysis using a combination of Gaussian and non-Gaussian statistics of the weak lensing mass (convergence) maps from...
  • Publication
    Dark energy survey year 3 results: weak lensing shape catalogue
    We present and characterize the galaxy shape catalogue from the first 3 yr of Dark Energy Survey (DES) observations, over an effective area of 4143 deg 2 of the...
  • Publication
    Dark Energy Survey: A 2.1% measurement of the angular Baryonic Acoustic Oscillation scale at redshift zeff=0.85 from the final dataset
    We present the angular diameter distance measurement obtained with the baryonic acoustic oscillation (BAO) feature from galaxy clustering in the completed Dark...
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    Dark Energy Survey: Galaxy sample for the baryonic acoustic oscillation measurement from the final dataset
    In this paper, we present and validate the galaxy sample used for the analysis of the baryon acoustic oscillation (BAO) signal in the Dark Energy Survey (DES)...
  • Publication
    Dark energy versus Ωm = 1 in the growth of matter perturbations
    We explore the possibility of discriminating dark energy models from the study of the growth of matter perturbations. For the sake of simplicity, instead of...
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    Dark matter content of ETGs and its relation to the local density of galaxies
    We study the behaviour of the dynamical and stellar mass inside the effective radius as function of local density for early-type galaxies (ETGs). We use several...
  • Publication
    Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
    We use a combination of three large N-body simulations to investigate the dependence of dark matter halo concentrations on halo mass and redshift in the...