Astrofísicas: Estructura a gran escala del universo

  • Publicación
    Comprehensive Gas Characterization of a z = 2.5 Protocluster: A Cluster Core Caught in the Beginning of Virialization?
    In order to connect galaxy clusters to their progenitor protoclusters, we must constrain the star formation histories within their member galaxies and the...
  • Publicación
    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...
  • Publicación
    Galaxy-galaxy lensing with the DES-CMASS catalogue: measurement and constraints on the galaxy-matter cross-correlation
    The DMASS sample is a photometric sample from the DES Year 1 data set designed to replicate the properties of the CMASS sample from BOSS, in support of a joint...
  • Publicación
    Identification of Superclusters and Their Properties in the Sloan Digital Sky Survey Using the WHL Cluster Catalog
    Superclusters are the largest massive structures in the cosmic web, on tens to hundreds of megaparsec scales. They are the largest assembly of galaxy clusters...
  • Publicación
    Mapping the Three-dimensional Lyα Forest Large-scale Structure in Real and Redshift Space
    This work presents a new physically motivated supervised machine-learning method, HYDRO-BAM, to reproduce the three-dimensional Lyα forest field in real and...
  • Publicación
    Peculiar Transverse Velocities of Galaxies from Quasar Microlensing. Tentative Estimate of the Peculiar Velocity Dispersion at z ~ 0.5
    We propose to use the flux variability of lensed quasar images induced by gravitational microlensing to measure the transverse peculiar velocity of lens...
  • Publicación
    Probing gravity with the DES-CMASS sample and BOSS spectroscopy
    The DES-CMASS sample (DMASS) is designed to optimally combine the weak lensing measurements from the Dark Energy Survey (DES) and redshift-space distortions...
  • Noticia
    Prueban un método para investigar la inflación cósmica
    Un equipo de astrónomos del Observatorio Astronómico Nacional de Japón (NAOJ), con la participación del Instituto de Astrofísica de Canarias (IAC), ha probado...
  • Publicación
    Relationships between cluster densities and other statistical quantities.
    We present a procedure for obtaining the cluster densities in terms of the probability, P_n_(r), for a randomly placed sphere of radius r to contain n galaxies...