Astrofísicas: Materia oscura

  • Publicación
    Euclid preparation: LXIII. Simulations and non-linearities beyond Lambda cold dark matter. 2. Results from non-standard simulations
    The Euclid mission will measure cosmological parameters with unprecedented precision. To distinguish between cosmological models, it is essential to generate...
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    Euclid preparation: LXV. Determining the weak lensing mass accuracy and precision for galaxy clusters
    The ability to measure unbiased weak-lensing (WL) masses is a key ingredient to exploit galaxy clusters as a competitive cosmological probe with the ESA Euclid...
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    Euclid: Searches for strong gravitational lenses using convolutional neural nets in Early Release Observations of the Perseus field
    The Euclid Wide Survey (EWS) is predicted to find approximately 170 000 galaxy-galaxy strong lenses from its lifetime observation of 14 000 deg 2 of the sky...
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    Examining the self-interaction of dark matter through central cluster galaxy offsets
    While collisionless cold dark matter models have been largely successful in explaining a wide range of observational data, some tensions still exist, and it...
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    Expected Number of Massive Galaxy Relics in the Present Day Universe
    The number of present day massive galaxies that have survived untouched since their formation at high-z is an important observational constraint to the...
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    Exploring the correlation between dark matter, intracluster light, and globular cluster distribution in SMACS0723
    We present a free-form model of SMACS0723, the first cluster observed with JWST. This model does not make any strong assumptions on the distribution of mass...
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    Exploring the halo-galaxy connection with probabilistic approaches
    Context. The connection between galaxies and their host dark matter halos encompasses a range of intricate and interrelated processes, playing a pivotal role in...
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    Exploring the nature of dark matter with the extreme galaxy AGC 114905
    AGC 114905 is a dwarf gas-rich ultra-diffuse galaxy seemingly in tension with the cold dark matter (CDM) model. Specifically, the galaxy appears to have an...
  • Publicación
    Exploring the physical origins of halo assembly bias from early times
    Context. The large-scale linear halo bias encodes the relation between the clustering of dark-matter (DM) halos and that of the underlying matter density field...