Journal: Astronomy and Astrophysics

  • Publication
    New spin period determination for comet 6P/d'Arrest
    A lightcurve of comet 6P/d'Arrest from R-band CCD images taken at La Palma 2.52 m NOT telescope is presented. The lightcurve shows noticeable periodic changes...
  • Publication
    New Teff and [Fe/H] spectroscopic calibration for FGK dwarfs and GK giants
    Context. The ever-growing number of large spectroscopic survey programs has increased the importance of fast and reliable methods with which to determine...
  • Publication
    New ultra metal-poor stars from SDSS: follow-up GTC medium-resolution spectroscopy
    Context. The first generation of stars formed in the Galaxy left behind the chemical signatures of their nucleosynthesis in the interstellar medium, visible...
  • Publication
    New ultracool subdwarfs identified in large-scale surveys using Virtual Observatory tools
    Aims: We aim to develop an efficient method to search for late-type subdwarfs (metal-depleted dwarfs with spectral types ≥M5) to improve the current statistics...
  • Publication
    New ultracool subdwarfs identified in large-scale surveys using Virtual Observatory tools (Corrigendum). I. UKIDSS LAS DR5 vs. SDSS DR7
    Based on observations made with ESO Telescopes at the La Silla Paranal Observatory under programme ID 084.C-0928A.Based on observations made with the Nordic...
  • Publication
    New ultracool subdwarfs identified in large-scale surveys using Virtual Observatory tools. I. UKIDSS LAS DR5 vs. SDSS DR7
    Aims: The aim of the project is to improve our knowledge of the low-mass and low-metallicity population to investigate the influence of metallicity on the...
  • Publication
    New very massive stars in Cygnus OB2
    Context: The compact association Cygnus OB2 is known to contain a large population of massive stars, but its total mass is currently a matter of debate. While...
  • Publication
    New young planetary nebulae in IPHAS
    Aims: We search for very small-diameter galactic planetary nebulae (PNe) representing the earliest phases of PN evolution. The IPHAS catalogue of Hα-emitting...
  • Publication
    Newly formed downflow lanes in exploding granules in the solar photosphere
    Context. Exploding granules have drawn renewed interest because of their interaction with the magnetic field (either emerging or already present). Especially...