Journal: Astronomy and Astrophysics

  • Publication
    Optical properties of Y dwarfs observed with the Gran Telescopio Canarias
    Aims: Our science goals are to characterise the optical properties of Y dwarfs and to study their consistency with theoretical models. Methods: A sample of five...
  • Publication
    Optical spectroscopy of 4U 1812-12. An ultra-compact X-ray binary seen through an H II region
    The persistent low-luminosity neutron star X-ray binary 4U 1812-12 is a potential member of the scarce family of ultra-compact systems. We performed deep...
  • Publication
    Optical spectroscopy of blazars for the Cherenkov Telescope Array
    Context. Blazars are the most numerous class of high-energy (HE; E ∼ 50 MeV−100 GeV) and very high-energy (VHE; E ∼ 100 GeV−10 TeV) gamma-ray emitters...
  • Publication
    Optical spectroscopy of blazars for the Cherenkov Telescope Array - III
    Context. Blazars, which include BL Lacs and flat-spectrum radio quasars, represent the brightest persistent extragalactic sources in the high-energy (HE; 10 MeV...
  • Publication
    Optical spectroscopy of IRAS 02091+6333
    We present a detailed spectroscopic investigation, spanning four winters, of the asymptotic giant branch (AGB) star IRAS 02091+6333. Zijlstra & Weinberger (cite...
  • Publication
    Optical spectroscopy of isolated planetary mass objects in the σ Orionis cluster
    We have obtained low resolution optical spectra of 15 isolated planetary mass objects (IPMOs) in the sigma Orionis cluster, and derived spectral types by...
  • Publication
    Optical spectroscopy of microquasar candidates at low Galactic latitudes
    We report optical spectroscopic observations of a sample of 6 low-galactic latitude microquasar candidates selected by cross-identification of X-ray and radio...
  • Publication
    Optical surface photometry of a sample of disk galaxies. II. Structural components
    This work presents the structural decomposition of a sample of 11 disk galaxies, which span a range of different morphological types. The U, B, V, R, and I...
  • Publication
    Optical validation and characterisation of Planck PSZ1 sources at the Canary Islands observatories. II. Second year of ITP13 observations
    We report new galaxy clusters previously unknown included in the first Planck Sunyaev-Zeldovich (SZ) sources catalogue, the PSZ1. The results presented here...