New evidence of binarity in young α-rich turn-off and subgiant stars: fast rotation and strong magnetic activity

Young α-rich (YAR) stars within the old Galactic thick disc exhibit a dual characteristic of relative youth determined with asteroseismology and abundance enhancement in α elements measured from high-resolution spectroscopy. The youth origin of YAR stars has been proposed to be binary evolution via...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2024-04, Vol.530 (3), p.2953-2959
Hauptverfasser:	Yu, Jie, Casagrande, Luca, Ciucă, Ioana, Ting, Yuan-Sen, Murphy, Simon J, Chen, Boquan
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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