Characterising the magnetic fields of the Herbig Ae/Be stars HD 97048, HD 150193, HD 176386, and MWC 480

• Authors: HUBRIG Swetlana; SCHÖLLER Marcus; ILYIN I.; COWLEY Charles R.; MIKULÁŠEK Zdeněk; STELZER Beate; POGODIN M. A.; YUDIN Ruslan V.; CURÉ M.
• Year of publication: 2011
• Type: Article in Periodical
• Magazine / Source: Astronomy and Astrophysics
• MU Faculty or unit: Faculty of Science
• Doi: http://dx.doi.org/10.1051/0004-6361/201117407
• Field: Astronomy and astrophysics
• Keywords: stars: pre-main sequence;stars: atmospheres; stars: magnetic field; stars: variables: general; stars: general
• Description: Our search for periodicities resulted in P = 0.693 d for HD 97048, P = 1.317 d for HD 150193, and P = 0.899 d for HD 176386. The magnetic field geometry can likely be described by a centred dipole with a polar magnetic field strength Bd of several hundred Gauss. The longitudinal magnetic-field measurements of MWC 480 reveal the presence of a strong kG field, which was undetected in our previous low-resolution polarimetric observations with FORS 1.