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

The Milky Way and the Local Group (MWLG)
  • Publication
    High-resolution spectroscopy of the high-velocity hot post-AGB star LS III +52°24 (IRAS 22023+5249)
    The first high-resolution (R˜ 50 000) optical spectrum of the B-type star, LS III +52°24, identified as the optical counterpart of the hot post-asymptotic giant...
  • Publication
    HiPERCAM: a quintuple-beam, high-speed optical imager on the 10.4-m Gran Telescopio Canarias
    HiPERCAM is a portable, quintuple-beam optical imager that saw first light on the 10.4-m Gran Telescopio Canarias (GTC) in 2018. The instrument uses re-imaging...
  • Publication
    Homogeneity in the early chemical evolution of the Sextans dwarf spheroidal galaxy
    We present the high-resolution spectroscopic analysis of two new extremely metal-poor star (EMPS) candidates in the dwarf spheroidal galaxy Sextans. These...
  • Publication
    Homogeneous analysis of globular clusters from the APOGEE survey with the BACCHUS code - II. The Southern clusters and overview
    We investigate the Fe, C, N, O, Mg, Al, Si, K, Ca, Ce, and Nd abundances of 2283 red giant stars in 31 globular clusters from high-resolution spectra observed...
  • Publication
    Homogeneous analysis of globular clusters from the APOGEE survey with the BACCHUS code ‑ III. ω Cen
    We study the multiple populations of ω Cen by using the abundances of Fe, C, N, O, Mg, Al, Si, K, Ca, and Ce from the high-resolution, high signal-to-noise (S/N...
  • Publication
    Homogeneous analysis of globular clusters from the APOGEE survey with the BACCHUS code. I. The northern clusters
    Aims: We seek to provide abundances of a large set of light and neutron-capture elements homogeneously analyzed that cover a wide range of metallicity to...
  • Publication
    Homogeneous photometry - VII. Globular clusters in the Gaia era
    We present wide-field, ground-based Johnson-Cousins UBVRI photometry for 48 Galactic globular clusters based on about 90 000 public and proprietary images. The...
  • Publication
    Homogeneous Photometry VI: Variable Stars in the Leo I Dwarf Spheroidal Galaxy
    From archival ground-based images of the Leo I dwarf spheroidal galaxy, we have identified and characterized the pulsation properties of 164 candidate RR Lyrae...
  • Publication
    Horizontal Branch Morphology and Multiple Stellar Populations in the Anomalous Globular Cluster M 22
    M 22 is an anomalous globular cluster that hosts two groups of stars with different metallicity and s-element abundance. The star-to-star light-element...