The magnetic field of $ζ$ 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: | Text |
| Language: | unknown |
| Published: |
arXiv
2014
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.48550/arxiv.1408.0178 https://arxiv.org/abs/1408.0178 |
| 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 $ζ$ 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 $ζ$ Ori A. We identify that it belongs to $ζ$ Ori Aa and characterize it. : proceedings of IAUS 307 |
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