Fig. 3
Comparisons of the adopted spectroscopic results in this work with literature data for effective temperature, surface gravity and metallicity. Different symbols denote different references: circles for Hekker & Meléndez (2007), downward and upward triangles for da Silva et al. (2006, 2011), stars for Takeda et al. (2008), + for Valenti & Fischer (2005) and x for Gonzalez et al. (2010).
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