Fig. 1.
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Mg I and Ca II triplets in the normalised and RV-corrected spectra of J1903-0023 (solid) and J0725-2351 (dash-dotted). The rotational velocity broadening can be clearly seen for J1903-0023. The resolving power is 6655 for the blue arm and 8935 for the VIS arm for J0725-2351, and the spectrum of J1903-0023 was convolved to match it.
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