Journal: Monthly Notices of the Royal Astronomical Society

  • Publication
    Chemical abundances of the secondary star in the neutron star X-ray binary Cygnus X-2
    We present Utrecht Echelle Spectrograph@William Herschel Telescope high-resolution spectra of the low-mass X-ray binary (LMXB) Cygnus X-2. We have derived the...
  • Publication
    Chemical analysis of CH stars - III. Atmospheric parameters and elemental abundances
    Elemental abundances of CH stars can provide observational constraints for theoretical studies on the nucleosynthesis and evolution of low- and intermediate...
  • Publication
    Chemical composition of the Orion nebula derived from echelle spectrophotometry
    We present echelle spectroscopy in the 3500- to 7060-Å range for two positions of the Orion nebula. The data were obtained using the 2.1-m telescope at...
  • Publication
    Chemical enrichment in cosmological, smoothed particle hydrodynamics simulations
    We present an implementation of stellar evolution and chemical feedback for smoothed particle hydrodynamics simulations. We consider the timed release of...
  • Publication
    Chemical enrichment in very low metallicity environments: Boötes I
    We present different chemical evolution models for the ultrafaint dwarf galaxy Boötes I. We either assume that the galaxy accretes its mass through smooth...
  • Publication
    Chemical history of isolated dwarf galaxies of the Local Group - I. dSphs: Cetus and Tucana
    For the first time, we obtain chemical evolution models (CEMs) for Tucana and Cetus, two isolated dwarf spheroidal galaxies of the Local Group. The CEMs have...
  • Publication
    Chemical tagging with APOGEE: discovery of a large population of N-rich stars in the inner Galaxy
    Formation of globular clusters (GCs), the Galactic bulge, or galaxy bulges in general is an important unsolved problem in Galactic astronomy. Homogeneous...
  • Publication
    Chemical trends in the Galactic halo from APOGEE data
    The galaxy formation process in the Λ cold dark matter scenario can be constrained from the analysis of stars in the Milky Way's halo system. We examine the...
  • Publication
    Chemistry in the dIrr galaxy Leo A
    We present chemical abundance determinations of two H II regions in the dwarf irregular (dIrr) galaxy Leo A from Gran Telescopio Canarias (GTC) Optical System...