stars: early-type; stars: fundamental parameters; stars: individual: ξ1 CMa 15 CMa α Pyx epsilon Lup 33 Eri HY Vel; stars: magnetic field; stars: oscillations; stars: variables: general
Abstract :
[en] In spite of recent detections of magnetic fields in a number of β Cephei and slowly pulsating B (SPB) stars, their impact on stellar rotation, pulsations, and element diffusion has not yet been sufficiently studied. The reason for this is the lack of knowledge of rotation periods, the magnetic field strength distribution and temporal variability, and the field geometry. New longitudinal field measurements of four β Cephei and candidate β Cephei stars, and two SPB stars were acquired with FORS 2 at the Very Large Telescope. These measurements allowed us to carry out a search for rotation periods and to constrain the magnetic field geometry for four stars in our sample. Based on observations obtained at the European Southern Observatory (ESO programme 084.D-0230(A)).
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Hubrig, S.; Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany
Ilyin, Ilya; Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany
Schöller, Markus; European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany
Briquet, Maryline ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Morel, Thierry ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)
De Cat, Peter; Koninklijke Sterrenwacht van Belgium, Ringlaan 3, 1180 Brussel, Belgium
Language :
English
Title :
First Magnetic Field Models for Recently Discovered Magnetic β Cephei and Slowly Pulsating B Stars
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