Astrophysical: Nucleosynthesis

  • Publication
    The Hobby-Eberly Telescope Chemical Abundances of Stars in the Halo (CASH) Project. I. The Lithium-, s-, and r-enhanced Metal-poor Giant HKII 17435-00532
    We present the first detailed abundance analysis of the metal-poor giant HKII 17435-00532. This star was observed as part of the University of Texas long-term...
  • Publication
    The Impact of Non-LTE Effects and Granulation Inhomogeneities on the Derived Iron and Oxygen Abundances in Metal-Poor Halo Stars
    This paper presents the results of a detailed theoretical investigation of the impact of non-LTE (NLTE) effects and of granulation inhomogeneities on the...
  • Publication
    The Lithium-, r- and s-Enhanced Metal-Poor Giant HK-II 17435-00532
    We present the first detailed abundance analysis of the metal-poor giant HK-II 17435-00532. This star was observed as part of the University of Texas Long-Term...
  • Publication
    The metal-poor end of the Spite plateau. I. Stellar parameters, metallicities, and lithium abundances
    Context. The primordial nature of the Spite plateau is at odds with the WMAP satellite measurements, implying a primordial Li production at least three times...
  • Publication
    The Pristine survey - XII. Gemini-GRACES chemo-dynamical study of newly discovered extremely metal-poor stars in the Galaxy
    High-resolution optical spectra of 30 metal-poor stars selected from the Pristine survey are presented, based on observations taken with the Gemini Observatory...
  • Publication
    The R-process Alliance: Fifth Data Release from the Search for R-process-enhanced Metal-poor Stars in the Galactic Halo with the GTC
    Understanding the abundance pattern of metal-poor stars and the production of heavy elements through various nucleosynthesis processes offers crucial insights...
  • Publication
    The Similarity of Abundance Ratio Trends and Nucleosynthetic Patterns in the Milky Way Disk and Bulge
    We compare abundance ratio trends in a sample of ∼11,000 Milky Way bulge stars (R GC < 3 kpc) from the Apache Point Observatory Galactic Evolution Experiment...
  • Publication
    Three-dimensional Spectral Classification of Low-Metallicity Stars Using Artificial Neural Networks
    We explore the application of artificial neural networks (ANNs) for the estimation of atmospheric parameters (Teff, logg, and [Fe/H]) for Galactic F- and G-type...
  • Publication
    Time evolution of light element isotopes in the Galaxy: implications for cosmogenic abundances.
    This article presents a theoretical framework for the evolution of light element nuclides in the Galactic disc. The authors use two key assumptions: infall of...