WR 25 is a bound WN6ha+O5(f+) binary with mass ratio 2.02±0.36, implying a very massive WN primary (≥55 M☉), and its Hβ P-Cygni absorption is mainly from the O star.
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A Detailed Spectroscopic Study of the WN6ha + O5 Colliding-wind Binary WR 25
WR 25 is a bound WN6ha+O5(f+) binary with mass ratio 2.02±0.36, implying a very massive WN primary (≥55 M☉), and its Hβ P-Cygni absorption is mainly from the O star.