Measurements of magnetic fields over the pulsation cycle in six roAp stars with FORS 1 at the VLT

• DOI: 10.1051/0004-6361:20031380
• Publication Date: 2004-02-11T10:20:40Z
• Authors: S. Hubrig; D. W. Kurtz; S. Bagnulo; T. Szeifert; M. Schöller; G. Mathys; W. A. Dziembowski
• Keywords: Star (game theory)

With FORS 1 at the VLT we have tried for first time to measure magnetic field variation over pulsation cycle in six roAp stars begin study of how and interact. For star HD 101065, which has one highest photometric amplitudes any star, found a signal known frequency 3σ level data set; however this could not be confirmed by later observations. A preliminary simple calculation expected variations suggests that they are same order as our current noise levels, leading us expect further observations with increased S/N good chance achieving an unequivocal detection.