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arXiv · 0809.4286

Magnetic topologies of the Herbig Ae/Be stars

E. Alecian·G. A. Wade·C. Catala·S. Bagnulo·T. Böhm·J. -C. Bouret·J. -F. Donati·C. Folsom·J. Grunhut·J. D. Landstreet·P. Petit·J. Silvester
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Abstract

Our recent discoveries of magnetic fields in a small number of Herbig Ae/Be (HAeBe) stars, the evolutionary progenitors of main sequence A/B stars, raise new questions about the origin of magnetic fields in the intermediate mass stars. The favoured fossil field hypothesis suggests that a few percent of magnetic pre-main sequence A/B stars should exhibit similar magnetic strengths and topologies to the magnetic Ap/Bp stars. In this talk I will present the methods that we have used to characterise the magnetic fields of the Herbig Ae/Be stars, as well as our first conclusions on the origin of magnetism in intermediate-mass stars.

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E. Alecian, G. A. Wade, C. Catala, S. Bagnulo, T. Böhm, J. -C. Bouret, J. -F. Donati, C. Folsom, J. Grunhut, J. D. Landstreet, P. Petit, J. Silvester. 2008-09-24. Magnetic topologies of the Herbig Ae/Be stars. https://arxiv.org/abs/0809.4286

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