Reference : First Magnetic Field Models for Recently Discovered Magnetic β Cephei and Slowly Pulsati...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/81132
First Magnetic Field Models for Recently Discovered Magnetic β Cephei and Slowly Pulsating B Stars
English
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 - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie]
Morel, Thierry [Université de Liège - ULg > 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]
1-Jan-2011
Astrophysical Journal Letters
IOP Publishing
726
L5
Yes (verified by ORBi)
International
2041-8205
2041-8213
Bristol
United Kingdom
[en] 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
[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)).
http://hdl.handle.net/2268/81132
10.1088/2041-8205/726/1/L5
http://esoads.eso.org/abs/2011ApJ...726L...5H
http://de.arxiv.org/abs/1012.3019

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