Surface magnetism of cool stars

Abstract : Magnetic fields are essential ingredients of many physical processes in the interiors and envelopes of cool stars. Yet their direct detection and characterisation is notoriously difficult, requiring high-quality observations and advanced analysis techniques. Significant progress has been recently achieved by several types of direct magnetic field studies on the surfaces of cool active stars. In particular, complementary techniques of the field topology mapping with polarisation data and total magnetic flux measurements from intensity spectra have been systematically applied to different classes of active stars leading to interesting and occasionally controversial results. In this paper we summarise the current status of direct magnetic field studies of cool stars, and investigations of surface inhomogeneities caused by the field, based on the material presented at the Cool Stars 19 splinter session.
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Communication dans un congrès
The 19th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (CS19), Jun 2016, Uppsala, Sweden. Astronomische Nachrichten, 338 (4), pp.428-441, 2017, 〈10.1002/asna.201713310〉
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Contributeur : Nicolas Clementin <>
Soumis le : jeudi 1 juin 2017 - 10:13:23
Dernière modification le : lundi 25 septembre 2017 - 16:02:02

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O. Kochukhov, P. Petit, K. G. Strassmeier, T. A. Carroll, R. Fares, et al.. Surface magnetism of cool stars. The 19th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (CS19), Jun 2016, Uppsala, Sweden. Astronomische Nachrichten, 338 (4), pp.428-441, 2017, 〈10.1002/asna.201713310〉. 〈hal-01530995〉

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