Lines of research: The Milky Way and the Local Group (MWLG)

The Milky Way and the Local Group (MWLG)
  • Publication
    RR Lyrae Mid-infrared Period-Luminosity-Metallicity and Period-Wesenheit-Metallicity Relations Based on Gaia DR3 Parallaxes
    We present new empirical infrared period-luminosity-metallicity (PLZ) and period-Wesenheit-metallicity (PWZ) relations for RR Lyae based on the latest Gaia...
  • Publication
    Rubidium and zirconium abundances in massive Galactic asymptotic giant branch stars revisited
    Context. Luminous Galactic OH/IR stars have been identified as massive (>4-5 M⊙) asymptotic giant branch (AGB) stars experiencing hot bottom burning and Li...
  • Publication
    Rubidium, zirconium, and lithium production in intermediate-mass asymptotic giant branch stars
    Context. A recent survey of a large sample of Galactic intermediate-mass (>3 M&sun;) asymptotic giant branch (AGB) stars shows that they exhibit large...
  • Publication
    s-process enrichment in the planetary nebula NGC 3918. Results from deep echelle spectrophotometry
    The chemical content of the planetary nebula NGC 3918 is investigated through deep, high-resolution (R ˜ 40 000) UVES (Ultraviolet-Visual Echelle Spectrograph)...
  • Publication
    Sailing under the Magellanic Clouds: a DECam view of the Carina dwarf
    We present deep optical photometry from the DECam imager on the 4 m Blanco telescope of over 12 deg2 around the Carina dwarf spheroidal, with complete coverage...
  • News
    Satellite galaxies can carry on forming stars when they pass close to their parent galaxies
    Historically most scientists thought that once a satellite galaxy has passed close by its higher mass parent galaxy its star formation would stop because the...
  • Publication
    SDSS absolute magnitudes for thin-disc stars based on trigonometric parallaxes
    We present a new luminosity-colour relation based on trigonometric parallaxes for thin-disc main-sequence stars in Sloan Digital Sky Survey (SDSS) photometry...
  • Publication
    Search for Galactic runaway stars using Gaia Data Release 1 and HIPPARCOS proper motions
    Context. The first Gaia Data Release (DR1) significantly improved the previously available proper motions for the majority of the Tycho-2 stars. Aims: We wish...
  • Publication
    Searching for chemical inhomogeneities in open clusters. Analysis of the CN and CH molecular band strengths in NGC 2158, NGC 2420, NGC 2682, NGC 7789, and Berkeley 29
    Context. The total mass of a cluster, which is the main parameter determining its ability to host more than one stellar generation, may constitute a threshold...