Astrophysical: Gravitational lensing

  • 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: Early Release Observations ─ A combined strong and weak lensing solution for Abell 2390 beyond its virial radius
    Euclid is currently mapping the distribution of matter in the Universe in detail via the weak lensing signature of billions of distant galaxies. The weak...
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    Euclid: Early Release Observations ─ Weak gravitational lensing analysis of Abell 2390
    The Euclid space telescope of the European Space Agency (ESA) is designed to provide sensitive and accurate measurements of weak gravitational lensing...
  • Publication
    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...
  • Publication
    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: Optimising tomographic redshift binning for 3 × 2 pt power spectrum constraints on dark energy
    The tomographic approach to analysing the 3 × 2 pt signal involves dividing the observed galaxy sample into a configuration of redshift bins. We present a...
  • Publication
    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...