Evolution of fluorine in the galaxy with the v-process

Chiaki Kobayashi, Natsuko Izutani, Amanda I. Karakas, Takashi Yoshida, David Yong, Hideyuki Umeda

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51 Citations (Scopus)
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Abstract

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 supernovae causes the [F/O] ratio to plateau at [O/H] less than or similar to-1.2,followed by a rapid increase toward [O/H] similar to-0.5 from the contribution of asymptotic giant branch stars. The plateau value of [F/O] depends on the neutrino luminosity released by core-collapse supernovae and may be constrained by using future observations of field stars at low metallicities. For globular clusters, the handful of [F/O] measurements suggest that the relative contribution from low-mass supernovae is smaller in these systems than in the field.

Original languageEnglish
Article numberL57
Number of pages4
JournalAstrophysical Journal Letters
Volume739
Issue number2
DOIs
Publication statusPublished - 1 Oct 2011

Keywords

  • Galaxy: abundances
  • Galaxy: evolution
  • stars: abundances
  • stars: AGB and post-AGB
  • supernovae: general
  • GALACTIC CHEMICAL EVOLUTION
  • GIANT BRANCH STARS
  • POPULATION-III SUPERNOVAE
  • CORE-COLLAPSE SUPERNOVAE
  • R-PROCESS ELEMENTS
  • METAL-POOR STARS
  • WOLF-RAYET STARS
  • MASSIVE STARS
  • MILKY-WAY
  • NEUTRINO NUCLEOSYNTHESIS

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