Solar abundances and helioseismology: fine structure spacings and separation ratios of low-degree p modes

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Colleges, School and Institutes


We have used 4752 days of data collected by the Birmingham Solar Oscillations Network (BiSON) to determine very precise oscillation frequencies of acoustic low-degree modes that probe the solar core. We compare the fine (small frequency) spacings and frequency separation ratios formed from these data with those of different solar models. We find that models constructed with low metallicity are incompatible with the observations. The results provide strong support for lowering the theoretical uncertainties on the neutrino fluxes. These uncertainties were recently raised due to the controversy over solar abundances.


Original languageEnglish
Pages (from-to)660-671
Number of pages12
JournalThe Astrophysical Journal
Publication statusPublished - 20 Jan 2007


  • Sun : interior, Sun : abundances, Sun : helioseismology, neutrinos