Astrophysical: Gravitational lensing

  • Publication
    Consistent lensing and clustering in a low-S<SUB>8</SUB> Universe with BOSS, DES Year 3, HSC Year 1, and KiDS-1000
    We evaluate the consistency between lensing and clustering based on measurements from Baryon Oscillation Spectroscopic Survey combined with galaxy-galaxy...
  • Talk
    Constraining strong lensing models with dynamics
    Galaxy groups have an important role in the hierarchical assembly of structures in the Universe. Since galaxy groups are much more massive than galaxy-scale...
  • Publication
    Constraining the baryonic feedback with cosmic shear using the DES Year-3 small-scale measurements
    We use the small scales of the Dark Energy Survey (DES) Year-3 cosmic shear measurements, which are excluded from the DES Year-3 cosmological analysis, to...
  • Publication
    Constraining the inner density slope of massive galaxy clusters
    We determine the inner density profiles of massive galaxy clusters (M 200 > 5 × 10 14 M ☉) in the Cluster-EAGLE (C-EAGLE) hydrodynamic simulations, and...
  • Publication
    Constraints on Jupiters from observations of Galactic bulge microlensing events during 2000
    We present observations of eight Galactic bulge microlensing events taken with the 1.0-m Jacobus Kapteyn Telescope (JKT) on La Palma during 2000 June and July...
  • Publication
    Constraints on the Abundance of Primordial Black Holes from X-Ray Quasar Microlensing Observations: Substellar to Planetary Mass Range
    We use X-ray observations of quasar microlensing (sensitive to smaller compact objects than in the optical) to study the possible presence of a population of...
  • Publication
    COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses. IX. Time delays, lens dynamics and baryonic fraction in HE 0435-1223
    We present accurate time delays for the quadruply imaged quasar HE 0435-1223. The delays were measured from 575 independent photometric points obtained in the R...
  • Publication
    Cosmology from cross-correlation of ACT-DR4 CMB lensing and DES-Y3 cosmic shear
    Cross-correlation between weak lensing of the Cosmic Microwave Background (CMB) and weak lensing of galaxies offers a way to place robust constraints on...
  • Publication
    Cusped Mass Models of Gravitational Lenses
    Recent observations of galaxy luminosity profiles and dark matter simulations find luminosity and mass distributions characterized by central cusps rather than...