Stellar Magnetism
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Accesso online: | |
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| _version_ | 1866910900254932992 |
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| author | Petit, Veronique Oksala, Mary E. |
| author_facet | Petit, Veronique Oksala, Mary E. |
| contents | Stellar Magnetism affects all spectral types and exists and varies throughout the evolution of stars. Magnetic fields can affect not only the interior of stars, but also their circumstellar environments. In this chapter, we concentrate on the magnetic fields that can be measured at the surface of stars through the influence of the Zeeman effect on their spectra. We provide a brief introduction to the Zeeman effect and its associated light polarization. We discuss the state-of-the-art spectropolarimetric techniques that are used to detect, measure, and characterize surface stellar magnetic fields. We then present one of the most outstanding problem in stellar physics, mainly the origins of magnetic fields in massive OBA stars. We describe our current knowledge of the properties of known magnetic massive stars, such as their incidence, field distribution, topology, etc., and offer an outlook on the impact of stellar evolution on stellar magnetism. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_00179 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Stellar Magnetism Petit, Veronique Oksala, Mary E. Solar and Stellar Astrophysics Stellar Magnetism affects all spectral types and exists and varies throughout the evolution of stars. Magnetic fields can affect not only the interior of stars, but also their circumstellar environments. In this chapter, we concentrate on the magnetic fields that can be measured at the surface of stars through the influence of the Zeeman effect on their spectra. We provide a brief introduction to the Zeeman effect and its associated light polarization. We discuss the state-of-the-art spectropolarimetric techniques that are used to detect, measure, and characterize surface stellar magnetic fields. We then present one of the most outstanding problem in stellar physics, mainly the origins of magnetic fields in massive OBA stars. We describe our current knowledge of the properties of known magnetic massive stars, such as their incidence, field distribution, topology, etc., and offer an outlook on the impact of stellar evolution on stellar magnetism. |
| title | Stellar Magnetism |
| topic | Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2504.00179 |