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TOPIC: Halpha activity of zeta Tau

Halpha activity of zeta Tau 8 years 3 months ago #117

Dear colleagues,
it seems that zeta Tau went through its minimum of the Halpha inactivity. Anyhow, the EW shows an increasing tendency.
The next minimum should be to expect in approx. 25 years.
It will be interesting to see, when the V/R activity starts too.
A great monitoring result of the ARAS community.

Ernst Pollmann
International Working Group ASPA
Active Spectroscopy in Astronomy
www.astrospectroscopy.de
www.astronomie.de/astronomische-fachgebiete


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Halpha activity of zeta Tau 8 years 3 months ago #119

This is seen as well in Br-gamma behaviour as observed by AMBER, see OHANA data
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