Browsing University of Hertfordshire by Author "Chiappini, C."

Now showing items 1-2 of 2

    • Barium lines in high-quality spectra of two metal-poor giants in the Galactic halo 

      Cescutti, G.; Morossi, C.; Franchini, M.; Marcantonio, P. Di; Chiappini, C.; Steffen, M.; Valentini, M.; François, P.; Christlieb, N.; Cortés, C.; Kobayashi, C.; Depagne, E. (2021-10-01)
      Context. Theoretical results showed the possibility that neutron capture elements were produced in the early Universe by two different sources: a frequent s-process source hosted by rotating massive stars, and a rare ...

    • Boron depletion in 9 to 15 M(circle dot) stars with rotation 

      Frischknecht, U.; Hirschi, R.; Meynet, G.; Ekstroem, S.; Georgy, C.; Rauscher, T.; Winteler, C.; Thielemann, F-K. (Cambridge University Press, 2010)
      The treatment of mixing is still one of the major uncertainties in stellar evolution models. One open question is how well the prescriptions for rotational mixing describe the real effects. We tested the mixing prescriptions ...