Astrofísicas: Cosmología

  • Publicación
    Dark Energy Camera All Data Everywhere cosmic shear project. V. Constraints on cosmology and astrophysics from 270 million galaxies across <inline-formula><mml:math><mml:mn>13,000</mml:mn><mml:mtext> </mml:mtext><mml:mrow><mml:msup><mml:mrow><mml:mi>deg</
    We present constraints on models of cosmology and astrophysics using cosmic shear data vectors from three datasets: the northern and southern Galactic cap of...
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    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...
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    Dark energy survey year 1 results: Constraining baryonic physics in the Universe
    Measurements of large-scale structure are interpreted using theoretical predictions for the matter distribution, including potential impacts of baryonic physics...
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    Dark Energy Survey year 1 results: the relationship between mass and light around cosmic voids
    What are the mass and galaxy profiles of cosmic voids? In this paper, we use two methods to extract voids in the Dark Energy Survey (DES) Year 1 redMaGiC galaxy...
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    Dark Energy Survey Year 3 results: calibration of lens sample redshift distributions using clustering redshifts with BOSS/eBOSS
    We present clustering redshift measurements for Dark Energy Survey (DES) lens sample galaxies used in weak gravitational lensing and galaxy clustering studies...
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    Dark Energy Survey Year 3 Results: clustering redshifts - calibration of the weak lensing source redshift distributions with redMaGiC and BOSS/eBOSS
    We present the calibration of the Dark Energy Survey Year 3 (DES Y3) weak lensing (WL) source galaxy redshift distributions n(z) from clustering measurements...
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    Dark energy survey year 3 results: Cosmological constraints from cluster abundances, weak lensing, and galaxy clustering
    Galaxy clusters provide a unique probe of the late-time cosmic structure and serve as a powerful independent test of the Λ CDM model. This work presents the...
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    Dark Energy Survey Year 3 Results: Cosmological constraints from second- and third-order shear statistics
    We present a cosmological analysis of the third-order aperture mass statistic using Dark Energy Survey Year 3 (DES Y3) data. We perform a complete tomographic...
  • Publicación
    Dark Energy Survey year 3 results: covariance modelling and its impact on parameter estimation and quality of fit
    We describe and test the fiducial covariance matrix model for the combined two-point function analysis of the Dark Energy Survey Year 3 (DES-Y3) data set. Using...