Solar abundances and helioseismology: fine structure spacings and   separation ratios of low-degree p modes
  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 had recently been raised due to the controversy over the solar abundances. 
Sarbani Basu (Yale), William J. Chaplin (Birmingham, U.K.), Yvonne   Elsworth (Birmingham, U.K.), Roger New (Sheffield Halla...