Astrofísicas: Galaxias

  • Publicación
    Polar bulges and polar nuclear discs: the case of NGC 4698
    The early-type spiral NGC 4698 is known to host a nuclear disc of gas and stars which is rotating perpendicularly with respect to the galaxy main disc. In...
  • Publicación
    Polarimetric observations of a sample of Compact Steep-Spectrum sources
    Measurements of the polarised emission from Compact Steep-Spectrum (CSS) sources can give important information about the physical conditions inside and around...
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    Polarimetry of the transient relativistic jet of GRB 110328/Swift J164449.3+573451
    We present deep infrared (Ks-band) imaging polarimetry and radio (1.4- and 4.8-GHz) polarimetry of the enigmatic transient Swift J164449.3+573451. This source...
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    Polarized Mid-infrared Synchrotron Emission in the Core of Cygnus A
    We present high-angular (~0.''4) resolution mid-infrared (MIR) polarimetric observations in the 8.7 μm and 11.6 μm filters of Cygnus A using CanariCam on the 10...
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    Populations of High-Luminosity Density-bounded H II Regions in Spiral Galaxies: Evidence and Implications
    We present evidence that the H II regions of high luminosity in disk galaxies may be density bounded, so that a significant fraction of the ionizing photons...
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    Position-velocity diagrams of ionized gas in the inner regions of disk galaxies
    We use long-slit spectroscopy along the major axis of a sample of 23 nearby disk galaxies to study the kinematic properties of the ionized-gas component in...
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    Post first dredge-up [C/N] ratio as age indicator. Theoretical calibration
    We performed a detailed analysis of the use of [C/N] measured in red giant branch stars between the completion of the first dredge up and the red giant branch...
  • Publicación
    Powerful mechanical-driven outflows in the central parsecs of the low-luminosity active galactic nucleus ESO 428-G14
    Low-luminosity Active Galactic Nuclei (LLAGNs) are characterized for low-radiative efficiency, much less than one percent of their Eddington limit. Nevertheless...
  • Publicación
    Powerful outflows in the central parsecs of the low-luminosity active galactic nucleus NGC 1386
    Low-luminosity active galactic nuclei, i.e. L_{bol}/Ledd ∼ 10-6-10-3, constitute the bulk population of active galactic nuclei (AGNs). Powerful jets, common in...