Sources of uncertainty in direct seismological measurements of the solar helium abundance

@article{Kosovichev1992SourcesOU,
  title={Sources of uncertainty in direct seismological measurements of the solar helium abundance},
  author={Alexander G. Kosovichev and J{\o}rgen Christensen-Dalsgaard and Werner Daeppen and Woiciech A. Dziembowski and Douglas O. Gough and Michael Thompson},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={1992},
  volume={259},
  pages={536-558}
}
The methods by which Dappen et al. (1988, 1990, 1991) and Dziembowski et al. (1990, 1991, 1992) recently obtained discrepant estimates of the helium abundance in the solar convection zone are compared. The aim of the investigation reported in this paper is to identify the main source of the discrepancy. Using as proxy data eigenfrequencies of a set of modes of a theoretical solar model, computed with the same physics as were the frequencies of a reference model with which these data are… Expand
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