The velocity law in the wind of the WN5 star in V444 Cyg is deduced from the photometric observations of Kron and Gordon (1943) and the light curve analysis of Kopal and Shapley (1946). A constant velocity wind in the inner portions of the flow (1.6 ≲ r/RWR ≲ 3.1), with a subsequent acceleration (3.1 ≲ r/RWR ∼ 7.7), is implied. This could be consistent with a multiply non-monotonlc wind model (Lucy 1982b). It is suggested that the apparently conflicting results for the V444 Cyg wind structure obtained by Cherepashchuk (1975) and Hartmann (1978) may be reconciled by a non-monotonic wind model.
Revista Mexicana de Astronomia y Astrofisica
- Pub Date:
- December 1984