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arXiv · 1108.3030

Evolution of Fluorine Abundances with the ν-Process

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

We calculate the evolution of fluorine in the solar neighborhood with the ν-process of core-collapse supernovae, the results of which are in good agreement with the observations of field stars. The ν-process operating in supernovae causes the [F/O] ratio to plateau at [O/H] < -1.2, followed by a rapid increase toward [O/H] ~ -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.

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Chiaki Kobayashi, Natsuko Izutani, Amanda I. Karakas, Takashi Yoshida, David Yong, Hideyuki Umeda. 2011-08-15. Evolution of Fluorine Abundances with the ν-Process. https://doi.org/10.1088/2041-8205%2F739%2F2%2Fl57

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