most citedThe weak magnetic field of the O9.7 supergiant zeta Orionis A

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astro-ph2008★ 71 cited

The weak magnetic field of the O9.7 supergiant zeta Orionis A

J. -C. Bouret, J. -F. Donati, F. Martins +4

We report here the detection of a weak magnetic field of 50 - 100 G on the O9.7 supergiant zeta Ori A, using spectropolarimetric observations obtained with NARVAL at the 2m Telesco…