Sub-MeV dark matter scattering, capture, and evaporation remove at most about 1e22 erg/s from the pulsating white dwarf G117-B15A, too little to explain its excess cooling, while Galactic Center white dwarfs could probe cross-sections down to roughly 1.5e-40 cm^2.
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Impact of Sub-MeV Dark Matter on the Cooling of Pulsating White Dwarfs
Sub-MeV dark matter scattering, capture, and evaporation remove at most about 1e22 erg/s from the pulsating white dwarf G117-B15A, too little to explain its excess cooling, while Galactic Center white dwarfs could probe cross-sections down to roughly 1.5e-40 cm^2.