Astrophysical: Gravitational lensing

  • 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...
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    Euclid preparation: XLII. A unified catalogue-level reanalysis of weak lensing by galaxy clusters in five imaging surveys
    Precise and accurate mass calibration is required to exploit galaxy clusters as astrophysical and cosmological probes in the Euclid era. Systematic errors in...
  • Publication
    Euclid: A complete Einstein ring in NGC 6505
    We report the discovery of a complete Einstein ring around the elliptical galaxy NGC 6505, at z = 0.042. This is the first strong gravitational lens discovered...
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    Euclid: Finding strong gravitational lenses in the early release observations using convolutional neural networks
    Several new galaxy-galaxy strong gravitational lenses have been detected in the early release observations (ERO) from Euclid. The all-sky survey is expected to...
  • Publication
    Euclid: Forecasts from the void-lensing cross-correlation
    The Euclid space telescope will survey a large dataset of cosmic voids traced by dense samples of galaxies. In this work we estimate its expected performance...
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    Euclid: II. The VIS instrument
    This paper presents the specification, design, and development of the Visible Camera (VIS) on the European Space Agency's Euclid mission. VIS is a large optical...
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    Euclid: Improving the efficiency of weak lensing shear bias calibration. Pixel noise cancellation and the response method on trial
    To obtain an accurate cosmological inference from upcoming weak lensing surveys such as the one conducted by Euclid, the shear measurement requires calibration...
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    Euclid: The Early Release Observations Lens Search Experiment
    We investigated the ability of the Euclid telescope to detect galaxy-scale gravitational lenses. To do so, we performed a systematic visual inspection of the 0...
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    Euclid: V. The Flagship galaxy mock catalogue: A comprehensive simulation for the Euclid mission
    We present the Flagship galaxy mock, a simulated catalogue of billions of galaxies designed to support the scientific exploitation of the Euclid mission. Euclid...