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arXiv · 1309.7556

Can we predict the magnetic properties of PMS stars from their H-R diagram location?

S. G. Gregory·J. -F. Donati·J. Morin·G. A. J. Hussain·N. J. Mayne·L. A. Hillenbrand·M. Jardine
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Abstract

Spectropolarimetric observations combined with tomographic imaging techniques have revealed that all pre-main sequence (PMS) stars host multipolar magnetic fields, ranging from strong and globally axisymmetric with ~>kilo-Gauss dipole components, to complex and non-axisymmetric with weak dipole components (<~0.1 kG). Many host dominantly octupolar large-scale fields. We argue that the large-scale magnetic properties of a PMS star are related to its location in the Hertzsprung-Russell diagram. This conference paper is a synopsis of Gregory et al. (2012), updated to include the latest results from magnetic mapping studies of PMS stars.

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S. G. Gregory, J. -F. Donati, J. Morin, G. A. J. Hussain, N. J. Mayne, L. A. Hillenbrand, M. Jardine. 2013-09-29. Can we predict the magnetic properties of PMS stars from their H-R diagram location?. https://doi.org/10.1017/s1743921314001677

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