Searching for a magnetic field in Wolf-Rayet stars using FORS2 spectropolarimetry
S. Hubrig, K. Scholz, W.-R. Hamann, M. Schoeller, R. Ignace, I. Ilyin, K.G. Gayley, L.M. Oskinova
To investigate if magnetic fields are present in Wolf-Rayet stars, we
selected a few stars in the Galaxy and one in the Large Magellanic Cloud
(LMC). We acquired low-resolution spectropolarimetric observations with
the ESO FORS2 instrument during two different observing runs. During the
first run in visitor mode, we observed the LMC Wolf-Rayet star BAT99 7
and the stars WR6, WR7, WR18, and WR23 in our Galaxy. The second run in
service mode was focused on monitoring the star WR6. Linear polarization
was recorded immediately after the observations of circular
polarization. During our visitor observing run, the magnetic field for
the cyclically variable star WR6 was measured at a significance level of
3.3sigma (
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