... spectra

Based on observations collected at the European Southern Observatory, Chile (ESO 65.P-0014(A)).

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...

Tables 1-3 and 8 and Fig. A.1 (Appendix A) are only available in electronic form at http://www.edpsciences.org

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...3,

Visiting Profesor at INAOE, Mexico.

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...4,

Visiting Fellow at IoA, UK.

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