Dark matter heat transport can erase convective cores in solar-mass stars, yielding asteroseismic constraints on dark matter-nucleon scattering and a 4 sigma hint of dark matter-electron scattering in KIC 8228742 that conflicts with direct detection limits.
Solar abundances and helioseismology: fine structure spacings and separation ratios of low-degree p modes
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abstract
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.
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Asteroseismological constraints on--and hints of--dark matter interactions
Dark matter heat transport can erase convective cores in solar-mass stars, yielding asteroseismic constraints on dark matter-nucleon scattering and a 4 sigma hint of dark matter-electron scattering in KIC 8228742 that conflicts with direct detection limits.