Astrofísicas: Radiación cósmica de fondo

  • Publicación
    Evidence for a high-z ISW signal from supervoids in the distribution of eBOSS quasars
    The late-time integrated Sachs-Wolfe (ISW) imprint of $R\gtrsim 100~h^{-1}\, \mathrm{Mpc}$ superstructures is sourced by evolving large-scale potentials due to...
  • Publicación
    Evidence of a truncated spectrum in the angular correlation function of the cosmic microwave background
    Aim. The lack of large-angle correlations in the fluctuations of the cosmic microwave background (CMB) conflicts with predictions of slow-roll inflation. But...
  • Publicación
    Foreground Contributions to 0.2-2° CMB Anisotropies
    We examine the extent to which galactic and extragalactic foregrounds can hamper the detection of primordial Cosmic Microwave background (CMB) anisotropies. We...
  • Publicación
    Improved CMB anisotropy constraints on primordial magnetic fields from the post-recombination ionization history
    We investigate the impact of a stochastic background of primordial magnetic fields (PMF) generated before recombination on the ionization history of the...
  • Blog
    La hoguera vanidosa
    El Big Bang era un estúpido. Se creía una gran explosión y presumía de que nadie en el Universo le superaba en magnitud. Vanidoso sin límite, sus alardes le...
  • Publicación
    MAGIC Discovery of Very High Energy Emission from the FSRQ PKS 1222+21
    Very high energy (VHE) γ-ray emission from the flat spectrum radio quasar (FSRQ) PKS 1222+21 (4C 21.35, z = 0.432) was detected with the MAGIC Cherenkov...
  • Publicación
    MAGIC observations of the February 2014 flare of 1ES 1011+496 and ensuing constraint of the EBL density
    Context. During February-March 2014, the MAGIC telescopes observed the high-frequency peaked BL Lac 1ES 1011+496 (z = 0.212) in flaring state at very-high...
  • Publicación
    Missing large-angle correlations versus even-odd point-parity imbalance in the cosmic microwave background
    Context. The existence of a maximum correlation angle (θ max ≳ 60°) in the two-point angular temperature correlations of cosmic microwave background (CMB)...
  • Publicación
    More out of less: an excess integrated Sachs-Wolfe signal from supervoids mapped out by the Dark Energy Survey
    The largest structures in the cosmic web probe the dynamical nature of dark energy through their integrated Sachs-Wolfe imprints. In the strength of the signal...