Apsidal motion in the massive binary HD 152218 | Astronomy & Astrophysics (A&A)

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Volume 594 (October 2016)

A&A, 594 (2016) A33

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Table 4

Evolution of the internal structure constant k₂ and the radius of 15 M_⊙ and 20 M_⊙ CLES model stars as a function of age, overshooting parameter, and metallicity.

Age	20 M_⊙						15 M_⊙

(Myr)	α_ov = 0.0		α_ov = 0.2		α_ov = 0.0		α_ov = 0.0		α_ov = 0.2		α = 0.0
	Z = 0.014		Z = 0.014		Z = 0.020		Z = 0.014		Z = 0.014		Z = 0.020
	R_∗ (R_⊙)	k ₂	R_∗ (R_⊙)	k ₂	R_∗ (R_⊙)	k ₂	R_∗ (R_⊙)	k ₂	R_∗ (R_⊙)	k ₂	R_∗ (R_⊙)	k ₂

3.3	6.834	0.010115	6.778	0.010025	7.131	0.009241	5.420	0.011154	5.366	0.011196	5.615	0.010386
3.8	7.142	0.009187	7.051	0.009127	7.441	0.008414	5.548	0.010632	5.485	0.010677	5.747	0.009905
4.3	7.481	0.008326	7.370	0.008240	7.810	0.007587	5.690	0.010104	5.612	0.010157	5.890	0.009428
4.8	7.923	0.007403	7.753	0.007350	8.258	0.006757	5.842	0.009586	5.749	0.009631	6.046	0.008951
5.3	8.447	0.006528	8.224	0.006468	8.803	0.005946	6.012	0.009065	5.901	0.009113	6.218	0.008472
5.8	9.110	0.005663	8.806	0.005602	9.495	0.005143	6.206	0.008532	6.069	0.008589	6.410	0.007989
6.3	10.010	0.004788	9.559	0.004749	10.421	0.004337	6.426	0.008002	6.256	0.008059	6.628	0.007503
6.8	11.258	0.003921	10.604	0.003894	11.720	0.003531	6.677	0.007467	6.470	0.007529	6.877	0.007015
7.3	12.789	0.003128	12.139	0.003046	13.425	0.002776	6.963	0.006937	6.715	0.006994	7.158	0.006529

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