par Thomson-Paressant, K.;Neiner, Coralie;Zwintz, Konstanze;Escorza Santos, Ana
Référence Monthly notices of the Royal Astronomical Society, 500, 2, page (1992-1999)
Publication Publié, 2020-01
Article révisé par les pairs
Résumé : Only three magnetic δScuti stars are known as of today. HD 41641 is a δScuti star showing chemical peculiarities and rotational modulation of its light curve, making it a good magnetic candidate. We acquired spectropolarimetric observations of this star with NARVAL at Télescope Bernard Lyot (TBL) to search for the presence of a magnetic field and characterize it. We indeed clearly detect a magnetic field in HD 41641, making it the fourth known magnetic δScuti star. Our analysis shows that the field is of fossil origin, like magnetic OBA stars, but with a complex field structure rather than the much more usual dipolar structure.