Fluorine in the Solar neighborhood: No evidence for the neutrino process

Abstract

Asymptotic Giant Branch stars are known to produce `cosmic' fluorine but it is uncertain whether these stars are the main producers of fluorine in the Solar neighborhood or if any of the other proposed formation sites, type II supernovae and/or Wolf-Rayet stars, are more important. Recent articles have proposed both Asymptotic Giant Branch stars as well as type II supernovae as the dominant sources of fluorine in the Solar neighborhood. In this paper we set out to determine the fluorine abundance in a sample of 49 nearby, bright K-giants for which we previously have determined the stellar parameters as well as alpha abundances homogeneously from optical high-resolution spectra. The fluorine abundance is determined from a 2.3 $\mu$m HF molecular line observed with the spectrometer Phoenix. We compare the fluorine abundances with those of alpha elements mainly produced in type II supernovae and find that fluorine and the alpha-elements do not evolve in lock-step, ruling out type II supernovae as the dominating producers of fluorine in the Solar neighborhood. Furthermore, we find a secondary behavior of fluorine with respect to oxygen, which is another evidence against the type II supernovae playing a large role in the production of fluorine in the Solar neighborhood. This secondary behavior of fluorine will put new constraints on stellar models of the other two suggested production sites: Asymptotic Giant Branch stars and Wolf-Rayet stars.

arXiv commentAccepted for publication in ApJ

References in corpus (28)

• The chemical composition of the Sun
• Exploring the Milky Way stellar disk. A detailed elemental abundance study of 714 F and G dwarf stars in the Solar neighbourhood
• Updated stellar yields from Asymptotic Giant Branch models
• Evolution, nucleosynthesis and yields of low mass AGB stars at different metallicities (II): the FRUITY database
• The Evolution of Isotope Ratios in the Milky Way Galaxy
• Explosive yields of massive stars from Z=0 to Z=Zsun
• Oxygen Abundances in Nearby FGK Stars and the Galactic Chemical Evolution of the Local Disk and Halo
• A strong case for fast stellar rotation at very low metallicities
• The origin of primary nitrogen in galaxies
• Nitrogen and oxygen abundances in the Local Universe
• Stellar evolution with rotation and magnetic fields:I. The relative importance of rotational and magnetic effects
• The Explosive Yields Produced by the First Generation of Core Collapse Supernovae and the Chemical Composition of Extremely Metal Poor Stars
• Fluorine and Sodium in C-rich low-metallicity stars
• On the origin of fluorine in the Milky Way
• Evolution of Fluorine Abundances with the ν-Process
• Stellar yields with rotation and their effect on chemical evolution models
• The Origin of Fluorine: Abundances in AGB Carbon Stars Revisited
• The thermonuclear production of F19 by Wolf-Rayet stars revisited
• Fluorine in AGB Carbon Stars Revisited
• Nucleosynthesis during the Merger of White Dwarfs and the Origin of R Coronae Borealis Stars
• Fluorine abundances in planetary nebulae
• Effects of nuclear cross sections on ${}^{19}$F nucleosynthesis at low metallicities
• The Chemical Evolution of Fluorine in the Bulge - High-resolution K-band spectra of giants in three fields
• Fluorine in the solar neighborhood - is it all produced in AGB-stars?
• A new solar fluorine abundance and a fluorine determination in the two open clusters M 67 and NGC 6404
• Detection of Fluorine in the Halo Planetary Nebula BoBn 1: Evidence For a Binary Progenitor Star
• The Abundance of Fluorine in Normal G and K Stars of the Galactic Thin Disk
• CNO and F abundances in the barium star HD 123396

Cited by in corpus (19)

• Chemical evolution with rotating massive star yields: I. The solar neighbourhood and the s-process elements
• Non standard s-process in massive rotating stars. Yields of $10-150$ $M_{\odot }$ models at $Z=10^{-3}$
• The $\nu$ process in the light of an improved understanding of supernova neutrino spectra
• The $\nu$-process with fully time-dependent supernova neutrino emission spectra
• Fluorine in the Solar Neighborhood: Chemical Evolution Models
• Fluorine in the solar neighborhood: modelling the Galactic thick and thin discs
• Fluorine in the solar neighbourhood: the need for several cosmic sources
• Solar System Abundances and Condensation Temperatures of the Halogens Fluorine, Chlorine, Bromine, and Iodine
• Aluminium-26 from massive binary stars II. Rotating single stars up to core-collapse and their impact on the early Solar System
• Constraining $\nu$-Process Production of Fluorine through Cosmic Ray Nucleosynthesis
• Fluorine Abundances in the Galactic Disk
• Chemical Evolution of Fluorine in the Milky Way
• Fluorine Abundances in the Galactic Nuclear Star Cluster
• M Giants with IGRINS II. Chemical Evolution of Fluorine at High Metallicities
• The Lowest Broad Alpha Cluster Resonances in ${}^{19}$F
• First detection of AlF line emission towards M-type AGB stars
• Detection of fluorine in hot Extreme Helium Stars
• Exploring fluorine chemical evolution in the Galactic disk: the open cluster perspective
• Fluorine Abundances in Local Stellar Populations