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New investigation, see the following link:
“Mass & precession of the Disk in zeta Tau”.
The paper has been accepted and will be published at IBVS during the coming weeks.
Ernst Pollmann
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Hi Ernst,
An interesting paper and a good demonstration of what can be achieved with the high resolution spectrographs that are now available to the amateur community.
Best wishes,
Andy
For those, who have difficulties to imagine the process of disk-nodding and disk-precession in zeta Tau, here a link to an animation:
http://astrospectroscopy.de/media/files/disk-nodding_slow.AVI
Arranged from: Schaefer et al., The astron. Journal, 140, 1838-1849, 2010
Ernst Pollmann
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