Advancing the accuracy in age determinations of old-disk stars using an oscillating red giant in an eclipsing binary
Context. The study of resonant oscillation modes in low-mass red giant branch stars enables us to infer their ages with exceptional (∼10%) precision. This unlocks the possibility to reconstruct the temporal evolution of the Milky Way at early cosmic times. Ensuring the accuracy of such a precise age scale is a fundamental but difficult challenge
Thomsen, J. S. et al.
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2025