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

The Milky Way and the Local Group (MWLG)
  • Publication
    A census of OBe stars in nearby metal-poor dwarf galaxies reveals a high fraction of extreme rotators
    The early Universe, together with many nearby dwarf galaxies, is deficient in heavy elements. The evolution of massive stars in such environments is thought to...
  • Publication
    A Chemical and Kinematical Analysis of the Intermediate-age Open Cluster IC 166 from APOGEE and Gaia DR2
    IC 166 is an intermediate-age open cluster (OC) (˜1 Gyr) that lies in the transition zone of the metallicity gradient in the outer disk. Its location, combined...
  • News
    A conference celebrates 60 years in astrophysics by IAC researcher John Beckman
    On November 6th and 7th a meeting will be held in the Museum of Science and the Cosmos in La Laguna, to celebrate the dedication to astrophysics during 60 years...
  • Publication
    A dearth of young and bright massive stars in the Small Magellanic Cloud
    Context. Massive star evolution at low metallicity is closely connected to many fields in high-redshift astrophysics, but is poorly understood so far. Because...
  • Publication
    A DECam view of the diffuse dwarf galaxy Crater II - Variable stars
    Time series observations of a single dithered field centred on the diffuse dwarf satellite galaxy Crater II were obtained with the Dark Energy Camera (DECam) at...
  • Publication
    A DECam view of the diffuse dwarf galaxy Crater II: the colour-magnitude diagram
    We present a deep Blanco/DECam colour-magnitude diagram (CMD) for the large but very diffuse Milky Way satellite dwarf galaxy Crater II. The CMD shows only old...
  • Publication
    A Detailed look at Chemical Abundances in Magellanic Cloud Planetary Nebulae. I. The Small Magellanic Cloud
    We present an analysis of elemental abundances of He, N, O, Ne, S, and Ar in Magellanic Cloud planetary nebulae (PNe) and focus initially on 14 PNe in the Small...
  • Publication
    A detailed non-LTE analysis of LB-1: Revised parameters and surface abundances
    Context. It has recently been proposed that LB-1 is a binary system at 4 kpc consisting of a B-type star of 8 M ☉ and a massive stellar black hole (BH) of 70 M...
  • Publication
    A detailed study of the barium central star of the planetary nebula Abell 70
    We present a detailed study of the barium star at the heart of the planetary nebula Abell 70. Time-series photometry obtained over a period of more than 10 yr...