Astrofísicas: Galaxias

  • Publicación
    Numerical simulations of dark matter haloes produce polytropic central cores when reaching thermodynamic equilibrium
    Self-gravitating astronomical objects often show a central plateau in the density profile (core) whose physical origin is hotly debated. Cores are theoretically...
  • Publicación
    OASIS high-resolution integral field spectroscopy of the SAURON ellipticals and lenticulars
    We present a summary of high-spatial resolution follow-up observations of the elliptical (E) and lenticular (S0) galaxies in the SAURON survey using the OASIS...
  • Publicación
    OB associations in IC 1613 (Garcia+, 2009)
    From observations taken with the Wide Field Camera (WFC) at the Isaac Newton Telescope (INT), we have built an astrometric and photometric catalogue of stars in...
  • Publicación
    Obscuration beyond the nucleus: infrared quasars can be buried in extreme compact starbursts
    In the standard quasar model, the accretion disc obscuration is due to the canonical dusty torus. Here, we argue that a substantial part of the quasar...
  • Publicación
    Obscured active galactic nuclei from the ELAIS Deep X-ray Survey
    The sources discovered in deep hard X-ray surveys with 2-8 keV fluxes of S2-8˜ 10-14 erg cm-2 s-1 make up the bulk of the X-ray background at these energies...
  • Noticia
    Observan una gran corriente de marea en la galaxia del Sombrero
    Según el modelo cosmológico más actualizado, las grandes galaxias espirales como la Vía Láctea crecieron absorbiendo galaxias menores en una especie de...
  • Publicación
    Observation of Very High Energy Gamma-Ray Emission from the Active Galactic Nucleus 1ES 1959+650 Using the MAGIC Telescope
    The MAGIC Cerenkov telescope has observed very high energy (VHE) γ-ray emission from the active galactic nucleus 1ES 1959+650 during 6 hr in 2004 September and...
  • Publicación
    Observation of Very High Energy γ-Rays from the AGN 1ES 2344+514 in a Low Emission State with the MAGIC Telescope
    The MAGIC collaboration has observed very high energy gamma-ray emission from the AGN 1ES 2344+514. A gamma-ray signal corresponding to an 11 σ excess and an...
  • Publicación
    Observational constraints to boxy/peanut bulge formation time
    Boxy/peanut bulges are considered to be part of the same stellar structure as bars and both could be linked through the buckling instability. The Milky Way is...