The shortest-period Wolf-Rayet binary in the Small Magellanic Cloud: Part of a high-order multiple system - Spectral and orbital analysis of SMC AB 6

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Table 4

Derived parameters for the WR binary (O_n) compared to predictions by the best-fitting binary track (E_n).

	P	M_WR	M_O	log T_WR	log T_O	log L_WR	log L_O	X_H,WR	q
	[d]	[M_⊙]	[M_⊙]	[K]	[K]	[erg s⁻¹]	[erg s⁻¹]	–	–
O_n	6.5	18	41	4.90	4.61	5.87	5.65	0.25	2.2
E_n	7.9	25	45	4.90	4.61	5.89	5.63	0.21	1.8
σ_n	1.5	8	11	0.05	0.05	0.2	0.15	0.05	0.3

Notes. These best-fitting tracks are obtained for M_i,1 = 60 M_⊙, q_i = 0.7, and P_i = 16 d, and an age of 3.9 Myr.

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