Astrophysical: Techniques

  • 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 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
    NIR surface photometry of a sample of nearby spiral galaxies
    The first results of an observational programme aimed at mapping a sample of face-on spiral galaxies in the NIR are presented. This paper shows the surface...
  • Publication
    No direct coupling between bending of galaxy disc stellar age and light profiles
    We study the stellar properties of 44 face-on spiral galaxies from the Calar Alto Legacy Integral Field Area survey via full spectrum fitting techniques. We...
  • Publication
    No random transits in CHEOPS observations of HD 139139
    Context. The star HD 139139 (a.k.a. `the Random Transiter') is a star that exhibited enigmatic transit-like features with no apparent periodicity in K2 data...
  • Publication
    Nodal precession of a hot Jupiter transiting the edge of a late A-type star TOI-1518
    TOI-1518b, a hot Jupiter around a late A-type star, is one of the few planetary systems that transit the edge of the stellar surface (the impact parameter b ~ 0...
  • Publication
    Nodal precession of WASP-33b for 11 yr by Doppler tomographic and transit photometric observations
    WASP-33b, a hot Jupiter around a hot star, is a rare system in which nodal precession has been discovered. We updated the model for the nodal precession of WASP...