The magnetic field of zeta Ori A
Magnetic fields play a significant role in the evolution of massive stars. About 7% of massive stars are found to be magnetic at a level detectable with current instrumentation and only a few magnetic O stars are known. Detecting magnetic field in O stars is particularly challenging because they onl...
| Main Authors: | , , , , |
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| Format: | Conference Object |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://lirias.kuleuven.be/handle/123456789/467634 https://lirias.kuleuven.be/bitstream/123456789/467634/1//Blazere_et_al_2014.pdf |
| Summary: | Magnetic fields play a significant role in the evolution of massive stars. About 7% of massive stars are found to be magnetic at a level detectable with current instrumentation and only a few magnetic O stars are known. Detecting magnetic field in O stars is particularly challenging because they only have few, often broad, lines to measure the field, which leads to a deficit in the knowledge of the basic magnetic properties of O stars. We present new spectropolarimetric Narval observations of zeta Ori A. We also provide a new analysis of both the new and older data taking binarity into account. The aim of this study was to confirm the presence of a magnetic field in zeta Ori A. We identify that it belongs to zeta Ori Aa and characterize it. status: submitted |
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