Astrofísicas: Energía oscura

  • Publicación
    Fundamental physics with ESPRESSO: Constraining a simple parametrisation for varying α
    Context. The spectrograph ESPRESSO recently obtained a limit on the variation of the fine-structure constant, α, through measurements along the line of sight of...
  • Charla
    How to use a cosmological N-body simulation as a theoretical model
    A key problem that we are facing in cosmology nowadays is that we cannot make accurate predictions with our current theoretical models. We have all of the...
  • Charla
    How well does galaxy clustering constrain cosmology?
    On the LCDM cosmology, dark matter collapses into virialised objects called haloes. The abundance and distribution of these haloes are a direct consequence of...
  • Charla
    Measuring Dark Energy with Massive Redshift Surveys
    The Baryon Oscillation Spectroscopic Survey (BOSS) is a Stage III dark energy experiment on the Sloan Telescope. For the five years from 2009-2014, we are...
  • Publicación
    Nonextensive scalar field theories and dark energy models
    Current astronomical measurements indicate that approximately 73% of the universe is made up of dark energy. Stochastically quantized self-interacting scalar...
  • Noticia
    Nueva luz sobre la materia bariónica perdida y la gravedad en escalas cósmicas
    Los científicos estiman que la materia oscura y la energía oscura representan el 95% del Universo y que el 5% restante está constituida por la materia bariónica...
  • Charla
    Open questions and Non-Standard models
    I will review some theoretical ideas in Cosmology different to the standard "Big Bang": the Quasi-steady State model, Plasma Cosmology model, non-cosmological...
  • Publicación
    Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument
    The Dark Energy Spectroscopic Instrument (DESI) embarked on an ambitious 5 yr survey in 2021 May to explore the nature of dark energy with spectroscopic...
  • Publicación
    Planck 2013 results. XIX. The integrated Sachs-Wolfe effect
    Based on cosmic microwave background (CMB) maps from the 2013 Planck Mission data release, this paper presents the detection of the integrated Sachs-Wolfe (ISW)...