Astrophysical: Dark energy

  • Talk
    Cosmology with a new observable: Angular Redshift Fluctuations (ARF)
    In cosmology, it is customary to convert observed redshifts into distances in order to study the large scale distribution of matter probes like galaxies and...
  • Publication
    Cosmology with galaxy-galaxy lensing on non-perturbative scales: emulation method and application to BOSS LOWZ
    We describe our non-linear emulation (i.e. interpolation) framework that combines the halo occupation distribution (HOD) galaxy bias model with N-body...
  • Talk
    Dark Energy and Cosmic Sound
    I will discuss how the acoustic oscillations that propagate in the photon-baryon fluid during the first million years of the Universe provide a robust method...
  • Publication
    Dark Energy Survey Deep Field photometric redshift performance and training incompleteness assessment
    Context. The determination of accurate photometric redshifts (photo-zs) in large imaging galaxy surveys is key for cosmological studies. One of the most common...
  • Publication
    Dark Energy Survey Year 3 results: galaxy clustering and systematics treatment for lens galaxy samples
    In this work, we present the galaxy clustering measurements of the two DES lens galaxy samples: a magnitude-limited sample optimized for the measurement of...
  • Publication
    Dark Energy Survey Year 3 results: redshift calibration of the MAGLIM lens sample from the combination of SOMPZ and clustering and its impact on cosmology
    We present an alternative calibration of the MAGLIM lens sample redshift distributions from the Dark Energy Survey (DES) first 3 yr of data (Y3). The new...
  • Publication
    Dark Energy Survey Year 3 results: redshift calibration of the weak lensing source galaxies
    Determining the distribution of redshifts of galaxies observed by wide-field photometric experiments like the Dark Energy Survey (DES) is an essential component...
  • News
    DESI opens its 5.000 eyes to capture the colors of the Cosmos
    The new instrument, the result of an international collaboration of almost a hundred institutions, including the Instituto de Astrofísica de Canarias, has made...
  • Publication
    Dynamical system analysis and observational constraints of cosmological models in mimetic gravity
    We study the dynamics of homogeneous and isotropic Friedmann–Lemaître–Robertson–Walker cosmological models with positive spatial curvature within the context of...