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In the spring of 2007 I made a data cube of this object by interpolating a set of 7 high-dispersion spectra taken at different position angles. Under the assumption that the wind from this star was isotropic, what you see is a true 3D map of a circumstellar nebula. In reality, the velocity and spatial structure are convolved, but you can still see real pieces of the nebular structure. The paper: Van de Steene, G.C., Ueta, T., van Hoof, P.A.M., Reyniers, M., Ginsburg, A.G. 2008, ArXiv e-prints, 801, arXiv:0801.0674 Van de Steene, G.C., Ueta, T., van Hoof, P.A.M., Reyniers, M., Ginsburg, A.G. 2008, A&A, 480, 3, p775-783 Van de Steene's publications page. | ||
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