Astrofísicas: Galaxias

  • Publicación
    Observational Discovery of the Asymptotic Giant Branch Bump in Densely Populated Color-Magnitude Diagrams of Galaxies and Star Clusters
    The huge photometric databases that are being created for stars in the Magellanic Clouds and in Local Group galaxies not only allow a detailed study of the star...
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    Observational Evidence for a Galaxy Overdensity/Protocluster at z=6.5
    We present the results of our search near the end of the Reionization Epoch for faint galaxies around two close, massive Lyman-α emitters (LAEs) at redshift 6.5...
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    Observational hints of radial migration in disc galaxies from CALIFA
    Context. According to numerical simulations, stars are not always kept at their birth galactocentric distances but they have a tendency to migrate. 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...
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    Observations of Markarian 421 with the MAGIC Telescope
    The MAGIC telescope took data of very high energy γ-ray emission from the blazar Markarian 421 (Mrk 421) between 2004 November and 2005 April. We present a...
  • Publicación
    Observations of the Blazar 3C 66A with the Magic Telescopes in Stereoscopic Mode
    We report new observations of the intermediate-frequency peaked BL Lacertae object 3C 66A with the MAGIC telescopes. The data sample we use were taken in 2009...
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    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...
  • Publicación
    Observations of the Hubble Deep Field with the Infrared Space Observatory - I. Data reduction, maps and sky coverage
    We present deep imaging at 6.7 and 15 mu from the CAM instrument on the Infrared Space Observatory (ISO), centred on the Hubble Deep Field (HDF). These are the...
  • Publicación
    Observations of the Hubble Deep Field with the Infrared Space Observatory - II. Source detection and photometry
    We present positions and fluxes of point sources found in the Infrared Space Observatory (ISO) images of the Hubble Deep Field (HDF) at 6.7 and 15 mu. We have...