Astrophysical: Cosmology

  • Publication
    Non-Gaussianity in the Very Small Array cosmic microwave background maps with smooth goodness-of-fit tests
    We have used the Rayner and Best smooth tests of goodness-of-fit to study the Gaussianity of the Very Small Array (VSA) data. These tests are designed to be...
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    Non-local contribution from small scales in galaxy-galaxy lensing: comparison of mitigation schemes
    Recent cosmological analyses with large-scale structure and weak lensing measurements, usually referred to as 3 × 2pt, had to discard a lot of signal to noise...
  • Publication
    Non-standard models and the sociology of cosmology
    I review some theoretical ideas in cosmology different from the standard "Big Bang": the quasi-steady state model, the plasma cosmology model, non-cosmological...
  • Publication
    Observational and physical cosmology
    The present volume discusses topics associated with the very early universe, primordial nucleosynthesis, big bang nucleosynthesis and light-element abundances...
  • Publication
    Observational Cosmology: caveats and open questions in the standard model
    I will review some results of observational cosmology which critically cast doubt upon the foundations of the standard cosmology: 1) The redshifts of the...
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    Observations of a nearby filament of galaxy clusters with the Sardinia Radio Telescope
    We report the detection of diffuse radio emission which might be connected to a large-scale filament of the cosmic web covering a 8° × 8° area in the sky...
  • Publication
    Observations of Li-rich giant stars in the Galaxy and in the Magellanic Clouds
    The Lithium content in stars is very sensitive to the internal stellar conditions. Indeed, Lithium is readily destroyed in the interiors of low-mass main...
  • Publication
    Observations of the Corona Borealis supercluster with the superextended Very Small Array: further constraints on the nature of the non-Gaussian cosmic microwave background cold spot
    We present interferometric imaging at 33GHz, with the new superextended configuration of the Very Small Array (VSA), of a very deep decrement in the cosmic...
  • Publication
    Observations of the cosmic microwave background and galactic foregrounds at 12-17GHz with the COSMOSOMAS experiment
    We present the analysis of the first 18 months of data obtained with the COSMOSOMAS (COSMOlogical Structures On Medium Angular Scales) experiment at the Teide...