A low-metallicity massive contact binary undergoing slow Case A mass transfer: A detailed spectroscopic and orbital analysis of SSN 7 in NGC 346 in the SMC

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Table 5.

Ephemerides obtained using the RVs of both binary components and the PHOEBE code.

Parameter	Value	Unit
P		[d]
ω₀		[°]
M₀		[d]
v₀		[km s⁻¹]
q_orb
a sin i		[R_⊙]

i_orb^(a)		[°]
a^(b)		[R_⊙]

Notes.

^(a)

Calibrated such that the orbital and spectroscopic masses agree within their uncertainties.

^(b)

Calculated using i_orb.

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