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The testing probe through the nebula: large-scale and long-term structures in the wind of a Wolf-Rayet star

Dr. Thomas Eversberg
DLR (Deutsches Zentrum für Luft- und Raumfahrt)

December 13th, 2016


During the summer of 2013, a 4-month spectroscopic campaign took place at Teide IAC 80 and other professional and amateur observatories to observe the variabilities in the wind of the Wolf-Rayet star WR 134. The spectroscopic data have been analyzed to better understand its wind and long-term periodicity, which can now be interpreted as arising from corotating interaction regions (CIRs) in the wind coming from the hidden surface of the star.