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Asteroseismic inferences of red-giant internal magnetic fields

Jørgen Christensen-Dalsgaard
Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus

Observations of oscillations in red giants, particularly with the Kepler mission, have provided evidence for the presence and properties of magnetic fields in their interiors. I provide an introduction to the asteroseismic investigations of red giants and discuss the evidence that has been obtained on the magnetic effects, including recent direct detections of magnetic frequency shifts. This has the potential to inform our understanding of the generation and evolution of magnetic fields in main-sequence and evolved stars and their effects on stellar evolution.

2023 April 26, 13:30

Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia