Revisiting the evolutionary status of massive stars in the central parsec of the Milky Way

Open Access

Table 4.

Time-averaged surface abundances in the different WR spectroscopic phases of our evolution models.

Spectral phase	M_zams	Δτ_phase	⟨X_H⟩	⟨X_He⟩	⟨X_C⟩	⟨X_N⟩	⟨X_O⟩	log⟨Ṁ⟩
	[M_⊙]	[yr]	mass percentage					[M_⊙ yr⁻¹]
ZAMS, Z = 0.020			70.83	27.16	0.354	0.103	0.858

Ofpe/WN9	60	8.61 × 10³	21.35 ± 0.01	76.69 ± 0.01	0.013 ± 0	1.173 ± 0	0.090 ± 0	−3.91
	40	1.60 × 10⁴	31.96 ± 2.11	66.07 ± 2.11	0.010 ± 0	1.089 ± 0.02	0.191 ± 0.02	−4.61
	32	4.44 × 10⁴	37.27 ± 1.02	60.75 ± 1.02	0.009 ± 0	1.007 ± 0.01	0.286 ± 0.01	−5.00
	25	9.37 × 10⁴	39.91 ± 2.38	58.04 ± 2.29	0.008 ± 0	1.022 ± 0.10	0.325 ± 0.01	−5.80

eWNL	60	4.72 × 10⁴	18.01 ± 6.04	79.78 ± 5.39	0.035 ± 0.13	1.365 ± 0.59	0.104 ± 0.10	−4.34
	40	9.17 × 10⁴	10.52 ± 7.00	86.88 ± 6.31	0.067 ± 0.20	1.695 ± 0.87	0.105 ± 0.07	−4.81
	32	1.35 × 10⁵	12.30 ± 9.08	84.73 ± 8.07	0.077 ± 0.23	1.975 ± 1.21	0.146 ± 0.07	−5.14
	25	1.04 × 10⁵	10.98 ± 8.91	80.29 ± 4.88	0.339 ± 0.72	6.062 ± 3.29	1.406 ± 1.31	−5.28

WN/C	60	4.14 × 10³	0.048 ± 0.06	90.04 ± 1.63	4.176 ± 1.74	3.368 ± 0.47	1.327 ± 0.34	−3.85
	40	1.66 × 10⁴	0.076 ± 0.07	90.15 ± 1.56	4.391 ± 1.81	3.498 ± 0.48	0.741 ± 0.21	−4.44
	32	3.06 × 10⁴	0.009 ± 0.01	88.96 ± 1.81	5.101 ± 2.04	3.918 ± 0.55	0.780 ± 0.25	−4.80
	25	3.02 × 10⁴	0.046 ± 0.05	75.44 ± 2.30	7.053 ± 1.98	9.111 ± 0.92	6.997 ± 1.22	−5.16

WC	60	4.48 × 10⁴	0 ± 0	56.10 ± 15.10	30.75 ± 10.78	0.661 ± 0.60	10.43 ± 4.51	−4.16
	40	1.06 × 10⁵	0 ± 0	62.40 ± 16.24	27.77 ± 12.27	0.959 ± 0.75	6.907 ± 4.36	−4.58
	32	1.31 × 10⁵	0 ± 0	59.74 ± 15.32	29.49 ± 11.58	1.23 ± 0.83	7.520 ± 4.25	−4.71
	25	9.03 × 10³	0 ± 0.01	36.28 ± 9.41	26.77 ± 4.62	1.03 ± 1.69	34.14 ± 6.71	−4.74

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