We calculate line profiles using a 4-parameter model
3 parameters describe the spatial and velocity distribution of
the emission: Ro is the minimum radius of X-ray emission, while b describes the acceleration of the
wind and q parameterizes the radial dependence of the filling factor.
1 parameter, t* describes the level of continuum absorption in
the overlying wind.
A wind terminal velocity is assumed based on UV observations, and the
calculated line profile is convolved with the appropriate instrument-response
function for each line.