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Weak magnetic fields in Ap/Bp stars : Evidence for a dipole field lower limit and a tentative interpretation of the magnetic dichotomy

Weak magnetic fields in Ap/Bp stars : Evidence for a dipole field lower limit and a tentative interpretation of the magnetic dichotomy

Aims. We investigated a sample of 28 well-known spectroscopically-identified magnetic Ap/Bp stars, with weak, poorly-determined or previously undetected magnetic fields. The aim of this study is to explore the weak part of the magnetic field distribution of Ap/Bp stars. Methods. Using the MuSiCoS and NARVAL spectropolarimeters at Telescope Bernard Lyot …