Astrofísicas: Galaxias

  • Publicación
    Dark Energy Survey Year 3 Results: Deep Field optical + near-infrared images and catalogue
    We describe the Dark Energy Survey (DES) Deep Fields, a set of images and associated multiwavelength catalogue (ugrizJHKs) built from Dark Energy Camera (DECam)...
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    Dark Energy Survey Year 3 Results: Galaxy mock catalogs for BAO analysis
    The calibration and validation of scientific analysis in simulations is a fundamental tool to ensure unbiased and robust results in observational cosmology. In...
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    Dark Energy Survey Year 3 results: marginalization over redshift distribution uncertainties using ranking of discrete realizations
    Cosmological information from weak lensing surveys is maximized by sorting source galaxies into tomographic redshift subsamples. Any uncertainties on these...
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    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...
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    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...
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    Dark halo structure in the Carina dwarf spheroidal galaxy: joint analysis of multiple stellar components
    Photometric and spectroscopic observations of the Carina dSph revealed that this galaxy contains two dominant stellar populations of different age and...
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    Dark matter annihilation and the Galactic Centre Excess
    We compare the surface brightness profile and morphology of the Galactic Centre Excess (GCE) identified in wide-angle γ-ray maps from the Fermi-Large Area...
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    Dark matter content of ETGs and its relation to the local density of galaxies
    We study the behaviour of the dynamical and stellar mass inside the effective radius as function of local density for early-type galaxies (ETGs). We use several...
  • Publicación
    Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
    We use a combination of three large N-body simulations to investigate the dependence of dark matter halo concentrations on halo mass and redshift in the...