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

The Milky Way and the Local Group (MWLG)
  • News
    A large tidal stream observed in the Sombrero galaxy
    According to the latest cosmological models, large spiral galaxies such as the Milky Way grew by absorbing smaller galaxies, by a sort of galactic cannibalism...
  • Publication
    A massive open cluster hiding in full sight
    Obscuration and confusion conspire to limit our knowledge of the inner Milky Way. Even at moderate distances, the identification of stellar systems becomes...
  • Publication
    A method to deconvolve stellar profiles. The non-rotating line utilizing Gaussian sum approximation
    Context. Currently, one of the standard procedures used to determine stellar and wind parameters of massive stars involves to comparing the observed spectral...
  • Publication
    A mid-infrared study of H II regions in the Magellanic Clouds: N88 A and N160 A
    Aims: To show the importance of high-spatial resolution observations of H II regions when compared with observations obtained with larger apertures such as ISO...
  • Publication
    A new and Homogeneous metallicity scale for Galactic classical Cepheids. II. Abundance of iron and α elements
    Context. Classical Cepheids are the most popular distance indicators and tracers of young stellar populations. The key advantage is that they are bright and...
  • Publication
    A New Einstein Cross Gravitational Lens of a Lyman-break Galaxy
    We report the study of an “Einstein Cross” configuration first identified in a set of HST images by Cerny et al. Deep spectroscopic observations obtained at the...
  • Publication
    A new line list for the A2Σ+ -X2 Π electronic transition of OH
    A new line list for the A2Σ+ -X2 Π electronic transition of OH has been calculated. Line positions have been taken from the literature and refitted with Western...
  • Publication
    A new linelist for the A3Π-X3Σ- transition of the NH free radical
    A new linelist for the A3Π-X3Σ- electronic transition of NH has been prepared using line positions from the literature and calculated line intensities. High...
  • Publication
    A new method of measuring centre-of-mass velocities of radially pulsating stars from high-resolution spectroscopy
    We present a radial velocity analysis of 20 solar neighbourhood RR Lyrae and three Population II Cepheid variables. We obtained high-resolution, moderate-to...