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 Models with Revised Abundance
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abstract
We present new solar models in which we use the latest low abundances and we further include the effects of rotation, magnetic fields and extra-mixing processes. We assume that the extra-element mixing can be treated as a diffusion process, with the diffusion coefficient depending mainly on the solar internal configuration of rotation and magnetic fields. We find that such models can well reproduce the observed solar rotation profile in the radiative region. Furthermore the proposed models can match the seismic constraints better than the standard solar models, also when these include the latest abundances, but neglect the effects of rotation and magnetic fields.
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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.