B fields in OB stars (BOB). Detection of a strong magnetic field in the O9.7 V star HD 54879
The number of magnetic stars detected among massive stars is small; nevertheless, the role played by the magnetic field in stellar evolution cannot be disregarded. Links between line profile variability, enhancements/depletions of surface chemical abundances, and magnetic fields have been identified for low-mass B-stars, but for the O-type domain
Castro, N. et al.
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2015