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Using Today’s Successes to Prepare the Future
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Asteroseismic Signature of Evolving Internal Stellar Magnetic Fields
Matteo Cantiello (Kavli Institute for Theoretical Physics), Jim Fuller (Caltech), Lars Bildsten (KITP, UCSB), Dennis Stello (University of Sydney), Rafa Garcia (Irfu, CEA)

Recent asteroseismic analyses indicate the presence of strong (greater than 105 G) magnetic fields in the cores of many red giant stars. We examine the implications of these results for the evolution of stellar magnetic fields, and we make predictions for future observations. In particular, we show how current and future asteroseismic data can be used to test the survival of strong internal magnetic fields across convective phases of evolution (e.g. the He-flash) and into the compact remnant phase. We will discuss the important implications for internal angular momentum transport and the incidence of magnetic White Dwarfs and Neutron Stars.

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