Abstract:Abstract. In this work, we present a new method to determine the surface gravity of δ Sct stars. We used a refined ∆ν-ρ relation and the stellar parallaxes or luminosities to determine their masses and radii. A comparison with the data obtained from the binary analysis, has shown that the values found by both methods are equivalent, within the uncertainties. Moreover, thanks to the refined relation, the uncertainties in log g are of the order of those usually estimated with high-resolution spectroscopy. Becaus… Show more
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