Unveiling the nature of HE 0107–5240: a long period binary CEMP-no star with [Fe/H] of –5.56

Open Access

Fig. 3

Isochrones from the BASTI database (Pietrinferni et al. 2021) in a Gaia colour-magnitude diagram. The two green points correspond to HE 0107−5240, assuming surface gravities of log g = 2.20 (upper point) and 2.46 (lower point), respectively.

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