paper

Multiple views of magnetism in cool stars

arXiv:1208.3338 · doi:10.1002/asna.201211771

Abstract

Magnetic fields are regarded as a crucial element for our understanding of stellar physics. They can be studied with a variety of methods which provide complementary - and sometimes contradictory - information about the structure, strength and dynamics of the magnetic field and its role in the evolution of stars. Stellar magnetic fields can be investigated either with direct methods based on the Zeeman effect or through the observation of activity phenomena resulting from the interaction of the field with the stellar atmosphere. In this Cool Stars XVII Splinter Session we discussed the results obtained by the many ongoing studies of stellar activity and direct studies of surface magnetic fields, as well as the state- of-the-art techniques on which they are based. We show the strengths and limitations of the various approaches currently used and to point out their evolution as well as the interest of coupling various magnetism and activity proxies.

4 pages. Summary of the splinter session "Multiple views of magnetism in cool stars" held at the 17th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, June 25th 2012, Barcelona, Spain. Submitted for publication in AN 334, Eds Klaus Strassmeier and Mercedes Lopez-Morales

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