On asymmetric dark matter constraints from the asteroseismology of a subgiant star

Understand

The asteroseismic modelling of solar-like stars has proved to be valuable in constraining dark matter.

• In this work we study for the first time the influence of asymmetric dark matter (ADM) in the evolution of a subgiant star (KIC 8228742) by direct comparison with observational data.
• Both spectroscopic and seismic data are analysed with a new approach to the stellar calibration method, in which DM properties can also be considered as free inputs.
• In another phase of this study, a calibrated standard stellar model (without DM) is used as the benchmark for DM models.