Magnetic cycles of the planet-hosting star τ Bootis – II. A second magnetic polarity reversal

In this paper, we present new spectropolarimetric observations of the planet-hosting star τ Bootis, using ESPaDOnS and Narval spectropolarimeters at Canada–France–Hawaii Telescope and Telescope Bernard Lyot, respectively. We detected the magnetic field of the star at three epochs in 2008. It has a w...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2009-09, Vol.398 (3), p.1383-1391
Hauptverfasser:	Fares, R., Donati, J.-F., Moutou, C., Bohlender, D., Catala, C., Deleuil, M., Shkolnik, E., Cameron, A. C., Jardine, M. M., Walker, G. A. H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics Earth, ocean, space Exact sciences and technology Physics planetary systems stars: activity stars: individual: τ Boo stars: magnetic fields
Online-Zugang:	Volltext
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