Fig. 3
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Comparison between VLT-FLAMES spectra of three stars with similar metallicities and stellar parameters but different [Eu/Fe] abundances: 4685582751830393088 (Teff = 3881 K and log g = 0.50, green), 4687249169089083136 (Teff = 4054 K and log g = 0.45, red), and 4684827460356570624 (Teff = 4087 K and log g = 0.61, blue). The arrows mark the position of the Eu II line at 6645 Å analysed in this work and of the adjacent absorption features.
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