%0 Conference Proceedings
%T What controls the large-scale magnetic fields of M dwarfs?
%+ Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS)
%+ Laboratoire Univers et Particules de Montpellier (LUPM)
%+ Institut für Astrophysik [Göttingen]
%A Gastine, T.
%A Morin, Julien
%A Duarte, L.
%A Reiners, A.
%A Christensen, U.
%A Wicht, J.
%Z 4 pages, 3 figures, conference proceeding, IAUS 302 'Magnetic Fields Throughout the Stellar Evolution', (26-30 Aug 2013, Biarritz, France)
%< avec comité de lecture
%Z LUPM:13-058
%( Magnetic Fields throughout Stellar Evolution
%B IAU symposium 302: Magnetic fields throughout stellar evolution
%C Biarritz, France
%V 302
%P 166
%8 2013-08-25
%D 2013
%Z 1309.6180
%R 10.1017/S1743921314001987
%Z Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR]Conference papers
%X Observations of active M dwarfs show a broad variety of large-scale magnetic fields encompassing dipole-dominated and multipolar geometries. We detail the analogy between some anelastic dynamo simulations and spectropolarimetric observations of 23 M stars. In numerical models, the relative contribution of inertia and Coriolis force in the global force balance -estimated by the so-called local Rossby number- is known to have a strong impact on the magnetic field geometry. We discuss the relevance of this parameter in setting the large-scale magnetic field of M dwarfs.
%G English
%L hal-01770048
%U https://hal.science/hal-01770048
%~ IN2P3
%~ CNRS
%~ UNIV-MONTP2
%~ LUPM
%~ MIPS
%~ UNIV-MONTPELLIER
%~ LUPM_AS
%~ UM1-UM2