Astrophysical: Dark matter

  • Publication
    On the orbital velocity of isolated galaxy pairs: II accurate MOND predictions
    Examining a catalogue of isolated galaxy pairs, a preferred orbital intervelocity of ~ 150 km s -1 was recently reported. This discovery is difficult to...
  • Talk
    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...
  • Talk
    Past, present and future of cosmic microwave background observations: implications for cosmology
    Since its discovery in 1964, the cosmic microwave background (CMB) has been one of the basic pillars of the cosmological model. However, it is only very...
  • Publication
    Planck 2013 results. XVIII. The gravitational lensing-infrared background correlation
    The multi-frequency capability of the Planck satellite provides information both on the integrated history of star formation (via the cosmic infrared background...
  • Publication
    Precision Measurement of the (e++e-) Flux in Primary Cosmic Rays from 0.5 GeV to 1 TeV with the Alpha Magnetic Spectrometer on the International Space Station
    We present a measurement of the cosmic ray (e++e-) flux in the range 0.5 GeV to 1 TeV based on the analysis of 10.6 million (e++e-) events collected by AMS. The...
  • Talk
    Presentation of the book: "Fundamental ideas in Cosmology. Scientific, philosophical and sociological critical perspectives" (IoP Science, 2022)
    Cosmological observations (redshifts, cosmic microwave background radiation, abundance of light elements, formation and evolution of galaxies, large-scale...
  • Talk
    Probing the early Universe with gravitational Wave Background
    We will review both theoretical and obsevational aspects of gravitational wave backgrounds of cosmological origin. We will present a classifcation of...
  • Publication
    Probing the low surface brightness outskirts of Milky Way dSphs: Sextans
    Faint dwarf galaxies such as those found around the Milky Way (MW) display the largest known dynamical mass-to-light ratios (up to several 100s M⊙/L⊙). However...
  • Publication
    Problems with the dark matter and dark energy hypotheses, and alternative ideas
    Two exotic elements have been introduced into the standard cosmological model: non-baryonic dark matter and dark energy. The success in converting a hypothesis...