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Long-term magnetic field monitoring of the sun-like star ξ Bootis A
Morgenthaler, A.; Petit, P.; Aurière, M. et al.
2010In Boissier, S.; Heydari-Malayeri, M.; Samadi, R. et al. (Eds.) SF2A-2010: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics
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Keywords :
stars: activity; stars: chromospheres; stars: imaging; stars: magnetic field; stars: solar-type; stars: individual: $\xi$ Bootis A
Abstract :
[en] Phase-resolved observations of the solar-type star ξ Bootis A were obtained using the Narval spectropolarimeter at Telescope Bernard Lyot (Pic du Midi, France) during years 2007, 2008, 2009 and 2010. The data sets enable us to study both the rotational and the long-term evolution of various activity tracers. Here, we focus on the large-scale photospheric magnetic field (reconstructed by Zeeman-Doppler Imaging), the Zeeman broadening of the FeI 846.84 nm magnetic line, and the chromospheric CaII H and Hα emission.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Morgenthaler, A.
Petit, P.
Aurière, M.
Dintrans, B.
Farès, R.
Gastine, T.
Lanoux, J.
Lignières, F.
Morin, J.
Ramirez, J.
Théado, S.
Van Grootel, Valérie  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Language :
English
Title :
Long-term magnetic field monitoring of the sun-like star ξ Bootis A
Publication date :
01 December 2010
Event name :
SF2A 2010
Event organizer :
Société Française d'Astronomie et d'Astrophysique
Event place :
France
Audience :
International
Main work title :
SF2A-2010: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics
Editor :
Boissier, S.
Heydari-Malayeri, M.
Samadi, R.
Valls-Gabaud, D.
Pages :
269
Peer reviewed :
Peer reviewed
Commentary :
eprintid: arXiv:1012.0198
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