Kholtygin et al., Astron. Astroph. Trans., (2003)

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Kholtygin et al., Astron. Astroph. Trans., (2003) A.F.Kholtygin, J.C. Brown, J.P.Cassinelli, S.N.Fabrika, D.N.Monin, A.E.Surkov,
Structure and variability of hot star winds",
Astron. Astroph. Trans., 22, 499-512 (2003)

The project of studying the structure of hot stars and the nature of their variability is presented. We propose the three-phase model for hot star winds and calculate the X-Ray line emission of hot component of wind in a comparison with a XMM-Newton X-Ray spectra of O4f star zeta Puppis. The results of high-resolution spectroscopy for some bright O-stars are also presented. The line profile variability of bright O-stars 19 Cep and lambda Ori A is detected.