Astrofísicas: Lente gravitacional

  • Publicación
    Euclid and KiDS-1000: Quantifying the impact of source-lens clustering on cosmic shear analyses
    Cosmic shear is a powerful probe of cosmological models and the transition from current Stage-III surveys such as the Kilo-Degree Survey (KiDS) to the increased...
  • Publicación
    Euclid preparation. VI. Verifying the performance of cosmic shear experiments
    Aims: Our aim is to quantify the impact of systematic effects on the inference of cosmological parameters from cosmic shear. Methods: We present an "end-to-end"...
  • Publicación
    Euclid preparation. VI. Verifying the Performance of Cosmic Shear Experiments (Corrigendum)
  • Publicación
    Euclid preparation. XXVIII. Forecasts for ten different higher-order weak lensing statistics
    Recent cosmic shear studies have shown that higher-order statistics (HOS) developed by independent teams now outperform standard two-point estimators in terms...
  • Publicación
    Euclid preparation. XXXIII. Characterization of convolutional neural networks for the identification of galaxy-galaxy strong-lensing events
    Forthcoming imaging surveys will increase the number of known galaxy-scale strong lenses by several orders of magnitude. For this to happen, images of billions...
  • Publicación
    Euclid preparation. XXXVI. Modelling the weak lensing angular power spectrum
    This work considers which higher order modeling effects on the cosmic shear angular power spectra must be taken into account for Euclid. We identified the...
  • Publicación
    Euclid preparation: LIII. LensMC, weak lensing cosmic shear measurement with forward modelling and Markov Chain Monte Carlo sampling
    LENSMC is a weak lensing shear measurement method developed for Euclid and Stage-IV surveys. It is based on forward modelling in order to deal with convolution...
  • Publicación
    Euclid preparation: LIX. Angular power spectra from discrete observations
    In this paper we present the framework for measuring angular power spectra in the Euclid mission. The observables in galaxy surveys, such as galaxy clustering...
  • Publicación
    Euclid preparation: LX. The use of HST images as input for weak-lensing image simulations
    Data from the Euclid space telescope will enable cosmic shear measurements to be carried out with very small statistical errors, necessitating a corresponding...