Fig. 10.
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Apsidal motion discrepancy as a function of the orbital separation scaled with the q parameter. Each system is composed of a primary 1.5 M⊙ MS star, and a secondary star with a lower or equal mass. The stars composing the systems have the same age (1.5 Byr) and initial chemical composition (X0 = 0.72, Z0 = 0.010). Each colour corresponds to a secondary with a different mass.
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