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

The Milky Way and the Local Group (MWLG)
  • Publication
    Heavy-element yields and abundances of asymptotic giant branch models with a Small Magellanic Cloud metallicity
    We present new theoretical stellar yields and surface abundances for asymptotic giant branch (AGB) models with a metallicity appropriate for stars in the Small...
  • Publication
    Helium abundances and its radial gradient from the spectra of H II regions and ring nebulae of the Milky Way
    We determine the radial abundance gradient of helium in the disc of the Galaxy from published spectra of 19 H II regions and ring nebulae surrounding massive O...
  • Publication
    HerMES: SPIRE emission from radio-selected active galactic nuclei
    We examine the rest-frame far-infrared emission from powerful radio sources with 1.4-GHz luminosity densities of 25 ≤ log(L1.4/W Hz-1) ≤ 26.5 in the...
  • Publication
    HH 223: a parsec-scale H2 outflow in the star-forming region L723
    Context. The dark cloud Lynds 723 (L723) is a low-mass star-forming region where one of the few known cases of a quadrupolar CO outflow has been reported. Two...
  • Publication
    High-resolution Hα imaging of the northern Galactic plane and the IGAPS image database
    The INT Galactic Plane Survey (IGAPS) is the merger of the optical photometric surveys IPHAS and UVEX based on data from the Isaac Newton Telescope (INT)...
  • Publication
    High-resolution Imaging of NGC 2346 with GSAOI/GeMS: Disentangling the Planetary Nebula Molecular Structure to Understand Its Origin and Evolution
    We present high spatial resolution (≈ 60–90 mas) images of the molecular hydrogen emission in the planetary nebula (PN) NGC 2346. The data were acquired during...
  • Publication
    High-resolution Optical Spectroscopy of DY Cen: Diffuse Interstellar Bands in a Proto-fullerene Circumstellar Environment?
    We search high-resolution and high-quality VLT/UVES optical spectra of the hot R Coronae Borealis star DY Cen for electronic transitions of the C60 molecule and...
  • Publication
    High-resolution spectroscopic study of massive blue and red supergiants in Perseus OB1. I. Definition of the sample, membership, and kinematics
    Context. The Perseus OB1 association, including the h and χ Persei double cluster, is an interesting laboratory for the investigation of massive star evolution...
  • Publication
    High-resolution spectroscopy of Boyajian's star during optical dimming events
    Boyajian's star is an apparently normal main-sequence F-type star with a very unusual light curve. The dipping activity of the star, discovered during the...