Astrophysical: Gravitational lensing

  • Publication
    Euclid preparation. VI. Verifying the Performance of Cosmic Shear Experiments (Corrigendum)
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    Euclid preparation: LXV. Determining the weak lensing mass accuracy and precision for galaxy clusters
    The ability to measure unbiased weak-lensing (WL) masses is a key ingredient to exploit galaxy clusters as a competitive cosmological probe with the ESA Euclid...
  • Publication
    Euclid preparation: LXVII. Deep learning true galaxy morphologies for weak lensing shear bias calibration
    To date, galaxy image simulations for weak lensing surveys usually approximate the light profiles of all galaxies as a single or double Sérsic profile...