Astrophysical: Techniques

  • Publication
    New Red Jewels in Coma Berenices
    We have used Sloan Digital Sky Survey-III (SDSS-III) Apache Point Observatory Galactic Evolution Experiment (APOGEE) radial velocity observations in the near...
  • 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
    Nickel- and iron-rich clumps in planetary nebulae: New discoveries and emission-line diagnostics
    Context. Integral field spectroscopy (IFS) offers a distinct advantage for studying extended sources by enabling spatially resolved emission maps for several...
  • 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
    NIRPS and TESS reveal a peculiar system around the M dwarf TOI-756: A transiting sub-Neptune and a cold eccentric giant
    Context. The Near InfraRed Planet Searcher (NIRPS) joined HARPS on the 3.6-m ESO telescope at La Silla Observatory in April 2023, dedicating part of its...
  • Publication
    NIRPS detection of delayed atmospheric escape from the warm and misaligned Saturn-mass exoplanet WASP-69 b
    Context. Near-infrared high-resolution échelle spectrographs unlock access to fundamental properties of exoplanets, from their atmospheric escape and...