Revisiting the rigidly rotating magnetosphere model for sigma Ori E ? II. Magnetic Doppler imaging, arbitrary field RRM, and light variability

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F15%3A00080839" target="_blank" >RIV/00216224:14310/15:00080839 - isvavai.cz</a>
Alternative codes found
RIV/67985815:_____/15:00449355
Result on the web
<a href="http://dx.doi.org/10.1093/mnras/stv1086" target="_blank" >http://dx.doi.org/10.1093/mnras/stv1086</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/stv1086" target="_blank" >10.1093/mnras/stv1086</a>

Result language
angličtina
Original language name
Revisiting the rigidly rotating magnetosphere model for sigma Ori E ? II. Magnetic Doppler imaging, arbitrary field RRM, and light variability
Original language description
The initial success of the Rigidly Rotating Magnetosphere (RRM) model application to the B2Vp star sigma Ori E by Townsend, Owocki and Groote triggered a renewed era of observational monitoring of this archetypal object. We utilize high-resolution spectropolarimetry and the magnetic Doppler imaging (MDI) technique to simultaneously determine the magnetic configuration, which is predominately dipolar, with a polar strength Bd = 7.3?7.8 kG and a smaller non-axisymmetric quadrupolar contribution, as well as the surface distribution of abundance of He, Fe, C, and Si. We describe a revised RRM model that now accepts an arbitrary surface magnetic field configuration, with the field topology from the MDI models used as input. The resulting synthetic H alpha emission and broad-band photometric observations generally agree with observations, however, several features are poorly fit.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Project
<a href="/en/project/GAP209%2F12%2F0217" target="_blank" >GAP209/12/0217: Multispectral variability of hot stars and its nature</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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