Astrofísicas: Galaxias

  • Publicación
    On the Redshift of TeV BL Lac Objects
    We report results of a spectroscopic campaign carried out at the 10 m Gran Telescopio Canarias for a sample of 22 BL Lac objects detected (or candidates) at TeV...
  • Publicación
    On the redshift of the very high-energy gamma-ray BL Lac object S2 0109+22
    The determination of the redshift of extragalactic gamma-ray sources is of fundamental importance for the interpretation of their emission models and...
  • Publicación
    On the relation between the coronal line emission and the infrared/X-ray emission in Seyfert galaxies
    The relation between the X-ray, the coronal line and the infrared (IR) emissions in a sample of the brightest known Seyfert galaxies is analysed. A close...
  • Publicación
    On the relation between the IR continuum and the active galactic nucleus in Seyfert galaxies
    A sample of the brightest known Seyfert galaxies from the CfA sample is analyzed on the basis of ISO photometric and spectroscopic data. Regardless of the...
  • Publicación
    On the relation between the Schmidt and Kennicutt-Schmidt star formation laws and its implications for numerical simulations
    When averaged over large scales, star formation in galaxies is observed to follow the empirical Kennicutt-Schmidt (KS) law for surface densities above a...
  • Publicación
    On the Reliability of Microvariability Tests in Quasars
    Microvariations probe the physics and internal structure of quasars. Unpredictability and small flux variations make this phenomenon elusive and difficult to...
  • Publicación
    On the self-consistency of evolutionary synthesis models
    Evolutionary synthesis models have been used to study the physical properties of unresolved populations in a wide range of scenarios. Unfortunately, their self...
  • Publicación
    On the shape and evolution of a cosmic-ray-regulated galaxy-wide stellar initial mass function
    In this paper, we present a new derivation of the shape and evolution of the integrated galaxy-wide initial mass function (IGIMF), incorporating explicitly the...
  • Publicación
    On the Size and Luminosity versus Velocity Dispersion Correlations from the Giant H II Regions in the Irregular Galaxy NGC 4449
    Here we present the size and luminosity versus velocity dispersion empirical correlations for the giant H II regions in the large irregular galaxy NGC 4449. We...