Astrofísicas: Galaxias

  • Publicación
    Variable stars in the Cetus dwarf spheroidal galaxy: population gradients and connections with the star formation history
    We investigate the variable star content of the isolated, Local Group, dwarf spheroidal (dSph) galaxy Cetus. Multi-epoch, wide-field images collected with the...
  • Publicación
    Variable Stars in the Field of the Hydra II Ultra-faint Dwarf Galaxy
    We report the discovery of one RR Lyrae star in the ultra-faint satellite galaxy Hydra II based on time series photometry in the g, r and i bands obtained with...
  • Publicación
    Variation of Galactic Bar Length with Amplitude and Density as Evidence for Bar Growth over a Hubble Time
    Ks-band images of 20 barred galaxies show an increase in the peak amplitude of the normalized m=2 Fourier component with the R25-normalized radius at this peak...
  • Publicación
    Variation of the stellar initial mass function in semi-analytical models. III. Testing the cosmic-ray regulated integrated galaxy-wide initial mass function
    Context. In our previous work, we derived the CR-IGIMF, which is a new scenario for a variable stellar initial mass function (IMF) that combines numerical...
  • Publicación
    Velocities in the A2345 cluster (Boschin+, 2010)
    Multi-object spectroscopic observations of A2345 were carried out at the TNG telescope in August 2008. We used DOLORES/MOS with the LR-B Grism 1, yielding a...
  • Publicación
    Velocities of A2294 galaxies (Girardi+, 2010)
    Multi-object spectroscopic observations of A2294 were carried out at the TNG telescope in December 2007 and August 2008. (1 data file).
  • Publicación
    Velocities of galaxies in Abell 520 (Girardi+, 2008)
    Multi-object spectroscopic observations of A520 were carried out at the TNG telescope in December 2006. We used DOLORES/MOS with the LR-B Grism 1. As far as...
  • Publicación
    Velocity catalog of A545 galaxies (Barrena+, 2011)
    Multi-object spectroscopic observations of A545 were carried out at the TNG telescope in October 2009. We used DOLORES/MOS with the LR-B Grism 1, yielding a...
  • Publicación
    Velocity dispersion and dynamical mass for 270 galaxy clusters in the Planck PSZ1 catalogue
    We present the velocity dispersion and dynamical mass estimates for 270 galaxy clusters included in the first Planck Sunyaev-Zeldovich (SZ) source catalogue...