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 language | English |
|---|---|
| Article number | L57 |
| Number of pages | 4 |
| Journal | Astrophysical Journal Letters |
| Volume | 739 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 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