Zeeman-Doppler Imaging of II Peg - Magnetic field restructuring from 2004 to 2007

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dc.creatorCarroll, T. A.
dc.creatorKopf, M.
dc.creatorStrassmeier, K. G.
dc.creatorIlyin, I.
dc.creatorTuominen, I.
dc.date2009-03-05
dc.date2009-03-09
dc.date.accessioned2026-07-07T12:49:49Z
dc.date.available2026-07-07T12:49:49Z
dc.descriptionWe present Zeeman-Doppler images of the active K2 star II Peg for the years 2004 and 2007. The surface magnetic field was reconstructed with our new ZDI code "iMap" which provides a full polarized radiative transfer driven inversion to simultaneously reconstruct the surface temperature and magnetic vector field distribution. II Peg shows a remarkable large scale magnetic field structure for both years. The magnetic field is predominantly located at high latitudes and is arranged in active longitudes. A dramatic evolution in the magnetic field structure is visible for the two years, where a dominant and largely unipolar field in 2004 has developed into two distinct and large scale bipolar structures in 2007.
dc.descriptionProceedings of IAU Symposium 259, Cosmic Magnetic Fields: from Planets, to Stars and Galaxies Ed.: K. G. Strassmeier, A. G. Kosovichev, J. Beckmann
dc.identifierhttps://arxiv.org/abs/0903.1016
dc.identifierhttp://arxiv.org/abs/0903.1016
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/222503
dc.subjectSolar and Stellar Astrophysics
dc.titleZeeman-Doppler Imaging of II Peg - Magnetic field restructuring from 2004 to 2007
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