Asteroseismic data show sdB stars rotate faster than expected, suggesting transient accretion from common-envelope remnants spins them up via magnetic fields.
B1bythemodelswhoseenvelopeisspunupto Ωenv/2𝜋=2000nHz by accretion
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Asteroseismic rotation rates of hot subdwarf B stars hint at transient accretion from leftover common envelope matter
Asteroseismic data show sdB stars rotate faster than expected, suggesting transient accretion from common-envelope remnants spins them up via magnetic fields.