The Exceptional Herbig Ae star HD 101412

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Authors	HUBRIG Swetlana MIKULÁŠEK Zdeněk GONZÁLES J. M. SCHÖLLER Marcus ILYIN I. CURÉ M. ZEJDA Miloslav COWLEY Charles R. ELKIN V. G. POGODIN M. A. YUDIN R. V.
Year of publication	2011
Type	Article in Proceedings
Conference	Magnetic Stars
MU Faculty or unit	Faculty of Science
Citation
Field	Astronomy and astrophysics
Keywords	stars: magnetic field - stars: pre-main sequence - stars: atmospheres - stars: individual: HD 101412 - stars: variables: general - stars: rotation
Description	A few months ago we obtained multi-epoch polarimetric spectra of HD 101412 with the FORS2 to search for a rotation period and to constrain the geometry of the magnetic field. The search of the rotation period resulted in P = 42.076 +/- 0.017 d. Using stellar fundamental parameters and the longitudinal magnetic field phase curve, we discuss the magnetic field geometry. According to the near-infrared imaging studies, the star is observed nearly edge-on. The magnetic field geometry can likely be described by a centered dipole with a polar magnetic field strength B_{d} between 1.5 and 2 kG and an inclination beta of the magnetic axis to the rotation axis of 84 +/- 13.
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