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

The Milky Way and the Local Group (MWLG)
  • Publication
    Measuring small-scale magnetic fields of 44 M dwarfs from SPIRou spectra with ZeeTurbo
    We present the results of an analysis aimed at probing the small-scale magnetic fields of M dwarfs observed with SPIRou, the nIR high-resolution spectro...
  • Publication
    Measuring the expansion and age of the nova shell IPHASX J210204.7 + 471015
    The parallax expansion and kinematics of a nova shell can be used to assess its age and distance, and to investigate the interaction of the ejecta with the...
  • Publication
    Merger traces in the spatial distribution of stellar populations in the Fornax dSph galaxy
    We present a comprehensive and detailed study of the stellar populations of the Fornax dwarf spheroidal galaxy. We analyse their spatial distributions along the...
  • Publication
    Mergers and interactions in Sloan Digital Sky Survey type 2 quasars at z˜ 0.3-0.4. SDSS J143027.66-005614.8: a case study
    We present a compilation of Hubble Space Telescope (HST) images of 58 luminous Sloan Digital Sky Survey (SDSS) type 2 active galactic nuclei (AGNs) at ?. Of...
  • Publication
    Metallicities from high-resolution spectra of 49 RR Lyrae variables
    Accurate metallicities of RR Lyrae are extremely important in constraining period-luminosity-metallicity (PLZ) relationships, particularly in the near-infrared...
  • Publication
    Metallicities, Age-Metallicity Relationships, and Kinematics of Red Giant Branch Stars in the Outer Disk of the Large Magellanic Cloud
    The outer disk of the Large Magellanic Cloud (LMC) is studied in order to unveil clues about its formation and evolution. Complementing our previous studies in...
  • Publication
    Metallicity and α-Element Abundance Gradients along the Sagittarius Stream as Seen by APOGEE
    Using 3D positions and kinematics of stars relative to the Sagittarius (Sgr) orbital plane and angular momentum, we identify 166 Sgr stream members observed by...
  • Publication
    Metallicity distribution of red giants in the Inner Galaxy from near infrared spectra
    Context: The existence in the Milky Way of either a long thin bar with a half length of 4.5 kpc and a position angle of around 45° with respect to the Sun...
  • Publication
    Metallicity of Galactic RR Lyrae from Optical and Infrared Light Curves. I. Period-Fourier-Metallicity Relations for Fundamental-mode RR Lyrae
    We present newly calibrated period-φ 31-[Fe/H] relations for fundamental-mode RR Lyrae stars in the optical and, for the first time, mid-infrared. This work's...