Browsing by Author "Umeda, Hideyuki"

Now showing items 1-4 of 4

    • Evolution of fluorine in the galaxy with the v-process 

      Kobayashi, Chiaki; Izutani, Natsuko; Karakas, Amanda I.; Yoshida, Takashi; Yong, David; Umeda, Hideyuki (2011-10-01)
      We calculate the evolution of fluorine in the solar neighborhood with the v-process of core-collapse supernovae, the results of which are in good agreement with the observations of field stars. The v-process operating in ...

    • The evolution of isotope ratios in the Milky Way Galaxy 

      Kobayashi, Chiaki; Karakas, Amanda I.; Umeda, Hideyuki (2011-07)
      Isotope ratios have opened a new window into the study of the details of stellar evolution, supernovae and galactic chemical evolution. We present the evolution of the isotope ratios of elemental abundances (from C to Zn) ...

    • Galactic chemical evolution : Carbon through zinc 

      Kobayashi, C.; Umeda, Hideyuki; Nomoto, Ken'ichi; Tominaga, Nozomu; Ohkubo, Takuya (2006-12-20)
      We calculate the evolution of heavy-element abundances from C to Zn in the solar neighborhood, adopting our new nucleosynthesis yields. Our yields are calculated for wide ranges of metallicity (Z = 0-Z circle dot) and the ...

    • Nucleosynthesis yields of core-collapse supernovae and hypernovae, and galactic chemical evolution 

      Nomoto, Ken'ichi; Tominaga, Nozomu; Umeda, Hideyuki; Kobayashi, C.; Maeda, Keiichi (2006-10-17)
      We present new nucleosynthesis yields as functions of the stellar mass, metallicity, and explosion energy (corresponding to normal supernovae and hypernovae). We apply the results to the chemical evolution of the solar ...